When fans think about the most talked-about romance in K-pop history, the story of Heechul and Momo stands out as one of the most genuine, emotionally complex, and publicly documented relationships the industry has ever seen. From their earliest interactions on variety shows to the official confirmation that shook fandoms across the globe, and eventually to the breakup that left millions of ONCE and ELF supporters heartbroken, this is the complete story of how two of South Korea’s biggest stars fell in love, navigated the pressures of idol life, and ultimately chose to part ways with grace and mutual respect.
This article covers every confirmed detail, every significant moment, and every verified fact in the Heechul and Momo relationship timeline. Nothing here is speculation dressed up as reporting. Every claim traces back to official agency statements, broadcast appearances, or publicly documented events.
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Who Are Heechul and Momo? Understanding the Two People Behind the Story
Before tracing the relationship timeline itself, it helps to understand who these two people are and why their connection carried such cultural weight inside the K-pop world.
Kim Heechul: Super Junior’s Most Outspoken Member
Kim Heechul was born on July 10, 1983, in Hoengseong, South Korea. He joined SM Entertainment in 2002 and made his debut as a member of Super Junior in 2005. Over the decades that followed, Heechul built a reputation that extended far beyond music. He became one of the most recognizable television personalities in South Korea, appearing regularly on variety programs, talk shows, and entertainment news panels. His sharp wit, unapologetically honest personality, and flamboyant public image made him a permanent fixture in Korean pop culture.
Unlike many male idols who maintain a carefully managed distance from topics like dating and romance, Heechul was always unusually candid on broadcast. He spoke openly about his ideal type, his views on relationships, and his emotional life in ways that were rare for someone in his position. That openness would later become central to how the public received his relationship with Momo.
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Hirai Momo: TWICE’s Dance Anchor and One of K-Pop’s Most Beloved Performers
Hirai Momo was born on November 9, 1996, in Kyotanabe, Japan. She joined JYP Entertainment after being scouted and went on to participate in the reality survival show Sixteen in 2015, where her extraordinary dancing ability and natural charisma secured her a spot in the final TWICE lineup. Since the group’s debut, Momo has been recognized as one of the strongest dancers in the entire K-pop industry, not just within her group.
Momo’s journey to becoming a globally recognized idol was not without difficulty. She was temporarily removed from the TWICE lineup during Sixteen before being reinstated, a moment that resonated deeply with fans who had watched her work through the process. That vulnerability, combined with her undeniable talent and warmth on camera, earned her a devoted following that extended well beyond South Korea into Japan, Southeast Asia, and international markets.
She is one of only a handful of TWICE members whose personal life has entered public record through official confirmation, which is what makes the Heechul chapter of her story so significant within the broader narrative of who she is as a public figure.
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Why Their Relationship Captured the World’s Attention

The combination of Heechul’s veteran status in the industry and Momo’s position as an active member of one of K-pop’s biggest girl groups created an instant narrative that fans and media could not ignore. They came from different agencies, different countries, and different generations within the industry. The Korea-Japan couple dynamic added another cultural layer to the story. Their 13-year age gap sparked genuine conversation about relationships, power dynamics, and what it means to be a public figure in love.
All of these elements together made the Heechul and Momo relationship one of the most discussed, analyzed, and emotionally invested stories in recent K-pop history.
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The First Connection: How Heechul and Momo Met
The origin of the Heechul and Momo connection goes back to 2016, when TWICE appeared on the variety show Weekly Idol. Heechul was already one of the most prominent hosts and recurring guests in the Korean variety world at that point, and TWICE was rapidly ascending to the top of the K-pop girl group rankings. Their paths crossed naturally through the professional world they both inhabited.
What made the early dynamic between them notable was Heechul’s unusually enthusiastic and publicly stated admiration for Momo specifically. On multiple broadcast occasions he named her as his ideal type, which in the K-pop world is a statement that carries significant weight precisely because idols are typically trained to give vague or non-committal answers to those kinds of questions. Heechul did not do vague. He said what he meant, and he said it on camera.
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The Sweet Dream Music Video and Its Later Significance
In 2016, Heechul cast Momo as the female lead in his music video for Sweet Dream. At the time, it read as a professional collaboration between two entertainers who had developed a friendly rapport through their shared variety show appearances. It was noted by fans but not treated as evidence of anything romantic.
After the relationship became public knowledge in January 2020, fans went back to watch the Sweet Dream video with entirely different eyes. The chemistry between the two of them, which had seemed like natural on-screen charisma at the time, took on new meaning with the context of what came later. It became one of the most referenced pieces of evidence in fan discussions about when the real connection between them might have begun.
The Knowing Bros Dynamic and Growing Public Familiarity
Beyond Weekly Idol, Heechul and Momo’s professional overlap was most visible on Knowing Bros, the long-running Korean variety program where Heechul served as a regular cast member. TWICE appeared on the show on multiple occasions, and each time, Heechul’s obvious affection for Momo was visible enough to become a talking point among fans who followed the show closely.
He was not subtle about finding her exceptional. He praised her dancing, engaged with her specifically during group interactions, and made no effort to conceal his admiration. In retrospect, fans described this period as the time when it was obvious to everyone watching except perhaps those who were not looking for it.
The 2019 Rumours and the Initial Denial
Speculation about a possible romantic relationship between Heechul and Momo began circulating in earnest in August 2019. Korean media outlets reported unverified claims that the two had been spotted together in Kyoto, Momo’s hometown in Japan. No photographs emerged to support those specific claims, but the speculation had taken root in fan communities and was not going away.
Both SM Entertainment and JYP Entertainment responded quickly with denials, stating that Heechul and Momo maintained a platonic relationship and were simply friends within the same professional industry. The denials were standard issue for how agencies typically handle dating rumours involving their artists, but given Heechul’s long public record of expressing admiration for Momo, many fans remained skeptical that the full story had been told.
The period between August 2019 and January 2020 was characterized by ongoing online discussion, fan speculation, and repeated returns to old broadcast footage in search of moments that might indicate something more than friendship. None of it was conclusive, but the conversation refused to quiet down entirely.
Heechul and Momo Confirmed: The Relationship Goes Public in January 2020

On January 1, 2020, both SM Entertainment and JYP Entertainment simultaneously confirmed that Heechul and Momo were in a relationship. The timing made them widely described as K-pop’s first couple of the new year and the new decade, which amplified the media coverage enormously. Two of South Korea’s most prominent entertainment agencies confirming a cross-agency idol relationship on the same day was genuinely unprecedented in terms of how such announcements were typically handled.
The statements from both agencies were supportive in tone. They acknowledged the relationship, asked fans to respect the couple’s privacy, and confirmed that both artists were continuing their professional activities as normal. There was no suggestion of disapproval or concern from either label, which was itself a signal of how the industry’s approach to idol dating had evolved by 2020 compared to earlier eras.
Momo’s Handwritten Letter to ONCE
Among the most emotionally resonant moments of the entire Heechul and Momo relationship story was the response Momo gave to the confirmation. Rather than staying silent or issuing a brief agency-approved statement, she wrote a handwritten letter directly to ONCE, TWICE’s official fanbase.
In the letter, she apologized for the surprise, expressed how deeply she valued her fans’ support, and asked for their understanding during what she acknowledged was a significant piece of personal news being shared with the public. The gesture was received warmly by the majority of the fandom and stood in contrast to how idol relationship announcements had sometimes been handled in the past, where artists either said nothing or issued cold corporate statements.
The letter humanized the moment in a way that earned Momo significant goodwill even from fans who might otherwise have responded negatively to the news of their favorite idol being in a relationship.
Heechul’s Response on Broadcast and His Apology to ELF
Heechul addressed the confirmation on television in the days following the announcement, which was consistent with his established pattern of handling personal matters with unusual transparency for a Korean celebrity. He spoke candidly about the relationship, acknowledged feeling guilt toward his own fanbase ELF for the announcement, and said directly that he had not wanted to cause anyone pain through the news.
He also addressed a specific rumour that had been circulating alongside the confirmation, namely that the two had been dating secretly for three years. Heechul rejected that claim directly on broadcast, stating that the timeline being suggested by some media outlets was inaccurate and that the relationship was much more recent than those reports implied.
His willingness to appear on camera and speak about the situation personally, rather than letting agency statements do all the communicating, was consistent with everything his public persona had always suggested about how he approached his relationship with fans and with transparency.
Fan and Netizen Reactions Across Korea and Japan
The public reaction to the confirmed Heechul and Momo relationship was divided but ultimately more positive than many idol dating announcements receive. Among international fans, the response was largely warm and celebratory. Many fans described feeling happy for two people they had followed for years and felt genuine affection toward.
Japanese netizens responded with notable enthusiasm, with many expressing that the Korea-Japan couple dynamic was something they welcomed. Given Momo’s Japanese origins and her popularity in her home country, the relationship carried specific cultural significance that resonated differently in Japan than it did in South Korea.
Within Korean fan communities, reactions were more mixed. A portion of ELF expressed disappointment, which was expected given how deeply some fans invest in parasocial relationships with idols. A minority of netizens were critical of the age gap, which at 13 years was significant enough to attract genuine commentary rather than being dismissed as irrelevant.
The age gap discussion was substantive rather than purely reactionary. Heechul was 36 and Momo was 23 when the relationship went public. Supporters pointed to both being consenting adults at established points in their professional lives. Critics raised questions about the sunbae and junior dynamic given Heechul’s senior position in the industry relative to Momo’s position within it. Neither side of that conversation reached a definitive conclusion, and it remained a recurring thread throughout the relationship’s public life.
What the Relationship Actually Looked Like Day to Day

Despite being one of K-pop’s most high-profile confirmed couples at the time, Heechul and Momo kept their private life genuinely private in the months that followed the confirmation. They were almost never photographed together outside of professional settings. They made a deliberate decision not to appear on the same variety programs after going public, apparently wanting to prevent their relationship from becoming a distraction from or overshadowing their individual professional work.
What the public did see was consistent warmth in how each spoke about the other on the rare occasions when the topic came up. Heechul’s long record of public admiration for Momo gave the relationship a fan-friendly origin story that many found genuinely romantic rather than manufactured.
The lifestyle differences between them also attracted attention. Heechul’s schedule, interests, and daily life as a veteran Korean entertainer looked very different from Momo’s reality as an active member of one of K-pop’s most demanding touring and performing groups. Fans discussed whether those differences would create friction, though neither Heechul nor Momo ever publicly confirmed whether they did.
The Heechul and Momo Breakup: July 2021
On July 8, 2021, both JYP Entertainment and Label SJ confirmed that Heechul and Momo had ended their relationship. The announcement came without warning or advance speculation, which made it more of a shock to the fandom than the original confirmation had been.
The official reason provided by both agencies was busy work schedules that had caused the couple to naturally drift apart over time. Both agencies described the parting as amicable and confirmed that the two had returned to a senior and junior colleague relationship within the professional K-pop industry. There was no suggestion of conflict, external interference, or any cause beyond the practical difficulties of maintaining a relationship when both people are operating at the highest levels of demanding entertainment careers.
Fan Speculation About Additional Factors
While the official explanation centered on busy schedules, some fan commentary offered additional theories about what might have contributed to the split. One frequently discussed idea was that Heechul, at 37 at the time of the breakup, was at a stage of life where thoughts of marriage and long-term settling were becoming more pressing, while Momo at 24 was at the absolute peak of an active touring and recording career that left little room for that kind of planning.
Neither party has ever publicly confirmed or addressed these theories. They remain speculation rather than verified fact and should be understood as such. What is documented is that both Heechul and Momo handled the breakup with the same maturity and public grace that had characterized how they managed the relationship from the beginning. There has been no negative commentary about the other from either party in the years since.
Life After the Breakup: Where Heechul and Momo Are in 2026

Momo’s New Relationship Confirmed by JYP in 2026
Momo entered 2026 with confirmed relationship news for the first time since the Heechul split nearly five years earlier. JYP Entertainment released an official statement in January 2026 confirming that she is in a relationship with a non-celebrity man she met privately. The agency did not disclose his identity or any further personal details beyond confirming that the relationship exists.
This makes Momo one of the most openly documented TWICE members in terms of personal life. Her willingness, through JYP’s public confirmations, to have her relationship status acknowledged rather than denied or ignored reflects both her own approach to fan communication and JYP’s evolving stance on how it handles idol dating news compared to earlier years.
Heechul’s Current Status
Heechul has continued his career as one of South Korea’s most prominent entertainment personalities in the years since the breakup. His variety show presence, broadcast work, and activities with Super Junior have continued without interruption. He has not publicly confirmed any new relationship in the period following the Momo breakup.
Other Rumours Involving Momo: What the Record Actually Shows
Beyond the confirmed Heechul chapter and the 2026 non-celebrity relationship, Momo’s name has appeared in various online rumour cycles over the years. None of these carry any evidentiary weight worth treating as credible reporting.
The most persistent of these involved BTS’s Jungkook. The basis for the speculation was perceived eye contact and physical proximity at award show events, specifically at gatherings like the Seoul Music Awards where multiple idol groups appear in the same venue on the same evening. No agency ever addressed the speculation officially. No photographs of private interaction between Momo and Jungkook were ever produced. The rumour traces entirely to fan analysis of shared public appearances and belongs firmly in the category of shipping rather than anything approaching confirmed fact.
Momo is also frequently paired with fellow TWICE members in fan communities, most commonly Sana and Nayeon, as part of the warm internal dynamic that ONCE engages with affectionately. These are expressions of fan culture and have never been presented as relationship claims by anyone with actual proximity to the situation.
Momo Within the TWICE Relationship Landscape
Momo’s relationship history places her in a distinct category within TWICE when viewed against the full picture of all nine members. She is one of only three members to have fully confirmed public relationships on record.
Jihyo confirmed a relationship with Korean artist Kang Daniel, which was acknowledged by both parties. Chaeyoung confirmed a relationship with a music producer in late 2025. Momo now has two confirmed relationships documented, the Heechul chapter from 2020 to 2021 and the 2026 non-celebrity partnership, making her the most openly documented member of TWICE in terms of personal life across the group’s entire history.
Members like Mina and Sana have no confirmed relationship history at all. The contrast across the group illustrates that JYP Entertainment handles each member’s personal news on an individual basis rather than applying any consistent blanket policy across all nine artists.
The Legacy of Heechul and Momo in K-Pop History
The story of Heechul and Momo left a mark on K-pop that extends beyond the usual fleeting interest that surrounds celebrity relationships. It arrived at a moment when conversations about idol dating culture, agency control over personal lives, and the emotional labor placed on entertainers in parasocial fan relationships were becoming more prominent across the industry.
How both of them handled every stage of the story, from the initial denial through the confirmation, through the public relationship period, and through the breakup announcement, set a standard that fans and commentators frequently referenced when discussing how idol relationships could and perhaps should be managed. The combination of Momo’s handwritten letter and Heechul’s candid broadcast appearances demonstrated that transparency, even in a controlled form, was possible and could be received positively by fans.
Their relationship also contributed to ongoing conversations about age gaps in Korean entertainment, about the Korea-Japan idol dynamic, and about the specific pressures that come with being in a relationship when one or both people are operating at the highest level of one of the world’s most demanding entertainment industries.
Frequently Asked Questions About Heechul and Momo
What is the age gap between Momo and Heechul?
Heechul and Momo have a 13-year age gap, with Heechul born in 1983 and Momo in 1996. This significant difference sparked widespread discussion across Korean and international fan communities throughout their relationship.
How long did Momo and Heechul date for?
Heechul and Momo dated for approximately one and a half years, from their official confirmation in January 2020 until both agencies announced their breakup in July 2021.
Is Heechul and Momo relationship confirmed?
Yes, in January 2020 both SM Entertainment and JYP Entertainment simultaneously confirmed that Heechul and Momo were officially in a romantic relationship, making them one of K-pop’s most high-profile confirmed couples at the time.
Is Heechul clinically disabled?
Yes, following a severe car accident in 2006, Kim Heechul was diagnosed with a level 4 physical disability after sustaining serious damage to his femur and ankle, requiring surgery involving seven metal rods.
How tall was Heechul before?
Heechul has stated his original height was approximately 185 cm, but following his 2006 traffic accident, his height was permanently reduced to around 176 cm due to the injuries he sustained.

I am M Hasnain, a celebrity researcher and digital content writer with over 2 years of hands-on experience covering celebrity net worth, biographies, height, age, and lifestyle facts. I am the founder and lead author of NetworthOra.com, where I publish in-depth, fact-checked profiles on public figures from the entertainment.
