When Heechul and Momo — two of K-pop’s biggest names from rival houses — confirmed their romance in 2020, fandom timelines exploded. A Super Junior legend dating a TWICE powerhouse? It was unprecedented, divisive, and utterly captivating. Here’s the full story, from first rumors to their eventual split.

Heechul & Momo: Overview

Detail	Heechul	Momo
Full Name	Kim Heechul	Hirai Momo
Born	July 10, 1983	November 9, 1996
Nationality	South Korean	Japanese
Group	Super Junior (SM Entertainment)	TWICE (JYP Entertainment)
Debuted	2005	2015 (via Sixteen survival show)
Age Gap	13 years	—
Relationship Status	Broke up in 2021	Currently single

The Timeline: Love, Fame & Public Scrutiny

2019 — Rumors Begin Korean media first reported sightings of Heechul and Momo spending time together. Both SM Entertainment and JYP Entertainment quickly denied a romantic connection, calling it friendship. Fans weren’t entirely convinced — and they were right.

January 2020 — Official Confirmation Both agencies dropped the bomb simultaneously: Heechul and Momo were officially a couple. The K-pop world went into a frenzy. Heechul addressed fans directly on a TV appearance, apologizing for keeping it private. Momo issued a written apology letter to ONCEs (TWICE’s fanbase). Heechul also clarified the “3-year dating” rumor was false — they had not known each other that long.

2020–2021 — Love in the Limelight Fans dug through old Instagram posts, finding clues hiding in plain sight — concert attendance, casual uploads, overlapping social circles. The 13-year age gap sparked debate, but the couple stayed focused on each other rather than online noise.

Mid-2021 — The Breakup The relationship came to a quiet end in 2021. Both sides cited demanding schedules and diverging priorities. The split was mutual, respectful, and handled with the same maturity that defined their relationship from the start. Fans — both supportive and critical — largely respected their decision to move on.

Also read: Most Iconic K-Pop Idol Couples of All Time | TechnoSports

Why This Couple Still Resonates

The Heechul and Momo story wasn’t just celebrity gossip — it sparked genuine conversations about dating culture in K-pop, age gaps, cross-agency romances, and the suffocating expectations placed on idols. That’s probably why this remains one of the most-searched K-pop relationship stories years after it ended.

Both have since moved forward individually. Momo is currently single and continues to shine with TWICE on the global stage. Heechul remains one of K-pop’s most beloved personalities.

Also read: Super Junior Members: Where Are They Now? | TechnoSports

FAQs

Q1. How long did Heechul and Momo date?

Heechul and Momo officially confirmed their relationship in January 2020 and broke up in mid-2021 — dating for approximately a year and a half. SM Entertainment and JYP Entertainment both confirmed the breakup respectfully.

Q2. Why did Heechul and Momo break up?

Both artists and their respective agencies stated that busy schedules and differing priorities led to the end of their relationship. There were no reports of conflict — the split was described as a mutual and amicable decision. Momo is currently single, while Heechul continues his career with Super Junior.