Lee Jae-hoon's 14-Year Music Show Return Stuns Everyone

Cool's Lee Jae-hoon made a triumphant return to Korean music television on April 3, 2026, appearing on KBS 2TV's music talk show The Seasons: Sung Si-kyung's Ear-Friend for the first time in 14 years. The veteran performer, who revealed he dropped 10 kilograms in just three weeks before filming, delivered a performance that reminded audiences exactly why he was one of the most electrifying entertainers of Korea's second-generation idol era.

Joining him for the episode were actress and singer Lee Sung-kyung and veteran singer-songwriter Yoon Jong-shin, creating one of the most star-studded lineups the still-young show has seen since its premiere. Together, the three guests gave host Sung Si-kyung's audience a night of performances that ranged from emotional ballads to high-energy dance numbers — and one Beyonce cover that nobody expected.

From the Peak of Cool to a 14-Year Break

Lee Jae-hoon is best known as a member of Cool, one of Korea's most beloved second-generation idol groups. Active through the late 1990s and 2000s, Cool dominated domestic charts with a distinctive blend of upbeat dance music and emotional ballads, becoming a household name across Korean pop culture. Their songs remain deeply embedded in the memories of an entire generation of Korean music fans.

After Cool's extended hiatus from the mainstream music scene, Lee Jae-hoon stepped away from the music show circuit entirely. For 14 years, he maintained a relatively lower public profile — until April 2026, when he accepted the invitation to appear on The Seasons. The magnitude of that decision was not lost on viewers. For many fans who grew up watching Cool in their prime, seeing Lee Jae-hoon back on a music broadcast stage felt like a genuine moment of nostalgia made real.

The Price of the Comeback: 10kg in Three Weeks

Before fans could see Lee Jae-hoon on stage, he had already put in extraordinary effort behind the scenes. In an honest and widely shared moment on the show, he confessed that he had lost 10 kilograms in just three weeks leading up to his appearance. The motivation was straightforward: he wanted to show up looking the way fans remembered him — at his peak-era best.

The confession immediately resonated online, with many viewers praising his dedication and commitment to the performance. Rather than viewing the rapid weight loss as a vanity exercise, audiences largely interpreted it as a sincere gesture of respect toward the fans who had waited years to see him back on stage. According to KBS Kpop's official YouTube channel, Lee Jae-hoon even joked on set that he was practically teaching the camera directors how to properly follow a performer's movement — a playful nod to how naturally he commands a stage.

When he finally stepped out to perform, the results spoke for themselves. Lee Jae-hoon tackled a medley of The Reason I Wanted It to Be You and Lucifer's Excuse, delivering both songs with the kind of controlled intensity that takes years of stage experience to develop. Reports from fans and media who watched the broadcast described his presence as effortlessly commanding — the energy of someone who had never really left.

Lee Sung-kyung's Surprise: Beyonce's Love on Top

If Lee Jae-hoon's performance was a long-awaited reunion for fans of classic K-pop, then Lee Sung-kyung's contribution to the evening was a genuinely unexpected highlight. The actress — celebrated for her roles in Weightlifting Fairy Kim Bok-joo, Dr. Romantic 2, and Shooting Stars — stepped up to perform Love on Top by Beyonce, one of the most vocally demanding songs in the global pop canon.

The performance was featured on The Seasons' official KBS Kpop YouTube channel, where it drew considerable attention. Love on Top is notorious among singers for its multiple key changes and the sustained vocal power required to carry it convincingly. Lee Sung-kyung's willingness to take on the song — and her evident preparation for it — drew praise from viewers who appreciated that she treated the appearance as a serious musical performance rather than a light celebrity cameo.

The juxtaposition of the two performances — Lee Jae-hoon's emotionally charged, dance-heavy Korean pop medley and Lee Sung-kyung's bold international pop selection — gave the episode a satisfying range that kept audiences engaged throughout. Yoon Jong-shin, a veteran of Korean music television and a legendary figure in his own right, rounded out the evening with his characteristic wit and musicianship.

The Seasons and Sung Si-kyung's New Chapter

The Seasons: Sung Si-kyung's Ear-Friend is only in its early episodes, having held its premiere just the week before Lee Jae-hoon's appearance. The show follows in the footsteps of The Seasons' storied legacy on KBS — a rotating host format that has featured some of Korea's most beloved artists as curators of musical evenings blending live performance with intimate conversation.

Sung Si-kyung, one of Korea's most celebrated ballad singers and a personality beloved for his warmth and humor, brings a particularly inviting energy to the format. As host, he creates a space where guests seem willing to be unusually candid — as Lee Jae-hoon demonstrated by discussing both his weight loss and his long absence with evident sincerity rather than polished talking points.

The show airs on KBS 2TV and is available for streaming on Wavve, with highlights published regularly on the KBS Kpop YouTube channel. The April 3 episode marks the second broadcast of what promises to be a compelling run, with the premiere already having been described as a strong start by viewers and critics alike.

Fans Respond as Lee Jae-hoon Proves He Still Has It

Audience response to Lee Jae-hoon's return has been notably emotional. Social media conversations in the days following the broadcast centered on several recurring themes: the nostalgia of seeing him on a music show stage again, admiration for the physical effort he clearly invested in the appearance, and genuine surprise at how fully he delivered under the pressure of a long-awaited comeback.

For fans of Cool's golden era, the performance landed as more than entertainment — it was a form of closure, or perhaps a reopening. The songs he chose carried real emotional weight for listeners who heard them during formative years, and his delivery did justice to that weight. Several clips from the broadcast trended across Korean social media platforms in the hours after airing, helping introduce a new generation of viewers to his work.

Lee Sung-kyung's performance, meanwhile, generated its own wave of reactions from fans who did not expect such a vocally ambitious selection from an actress guest. The response reinforced her growing reputation as a genuine all-around entertainer. Together, the two performances helped position the April 3 episode as an early signature moment for Sung Si-kyung's Ear-Friend — a demonstration of what the format can achieve when the right guests commit fully to the occasion.