JTBC’s ‘Sing Again 4’ returns with top-tier judges and record applicants

JTBC’s ‘Sing Again 4’ returns this October with powerhouse judge lineup.

The legendary reboot audition show ‘Sing Again – The Unknown Singer’ is returning for its highly anticipated fourth season.

Set to premiere on October 14th KST, JTBC’s ‘Sing Again 4’ offers one more chance to singers desperate for a stage—those who were once forgotten, overlooked, or never recognized in the first place. Throughout its previous seasons, the show has rekindled the original spirit of audition programs by spotlighting raw talent waiting to be rediscovered.

From Lee Seung Yoon, Jung Hong Il, and Lee Mu Jin in season 1, to Kim Ki Tae, Kim So Yeon, and Yoon Sung in season 2, and Hong Isaac, So Soo Bin, and Izell in season 3, the program has consistently unearthed breakout stars. Now, with its fourth season, even greater attention is being paid to the new line-up of “named” judges.

Returning to the judging panel are legendary balladeer Lim Jae Bum, audition mogul Yoon Jong Shin, heartfelt and candid vocalist Baek Ji Young, and the uniquely insightful producer CODE KUNST, all of whom were part of ‘Sing Again 3’.

Also returning are long-time Sing Again judges: lyricist Kim Eana, Kyuhyun of Super Junior, and Lee Hae Ri of Davichi, known for their deep musical range and emotional resonance. Notably, Taeyeon of Girls’ Generation, the quintessential all-rounder diva, will join the panel this season, adding another layer of vocal expertise.

Meanwhile, trusted veteran MC Lee Seung Gi, who has hosted all prior seasons, will once again lead the show.

Having rewritten the history of audition programs, ‘Sing Again’ has consistently generated buzz and strong ratings across all seasons—whether through the dramatic rise of undiscovered talents in season 1, the emergence of skilled underground musicians in season 2, or the standout performances by younger artists in season 3. With season 4 receiving the highest number of applicants in the show’s history, expectations are sky-high for what kind of powerful unknown singers will take the stage next.