The guessing panel was left baffled by flawless trot cover performances that seemed too perfect to be real.

During a preview of Jeong Dong Won's song, the panel suspected an AI rendition, citing "the intro was sung too smoothly to be genuine." However, their assumption was proven wrong when it turned out to be Jeong Dong Won himself performing live. The panel was astounded by the skillful deception.

Park Seo Jin’s stage then took the spotlight. His rendition of 'Tes Hyung!' by Na Hoon A was mistaken for AI due to its lack of vibrato. Once again, the panel’s guess missed the mark. Park Seo Jin appeared on stage and delivered a powerful live performance of the classic hit.

Jin Sung’s turn further shocked the panel. His intro differed dramatically from the one-minute preview, leaving the panel in disbelief. When Jin Sung stepped on stage to perform Cho Yong Pil’s 'Winter Tea House,' the audience was moved. Panelist Jonathan exclaimed, "This is my first time hearing him live, and it feels like lightning striking!"

In the second round, Young Tak covered FT Island’s 'Love Sick,' while Park Seo Jin prepared a rendition of Park Myung Soo’s 'Prince of the Sea.' After listening to Young Tak’s preview, the panel unanimously identified the performance as AI. MC Yoo Jae Suk expressed doubt, saying, "It sounds so real, though!" Nevertheless, their assessment was correct—Young Tak’s voice was indeed AI-generated.

Before Park Seo Jin’s second performance, panelist Lee Yong Jin predicted, "'Prince of the Sea' is a perfect song to perform with a drum. I bet he’ll appear with a drum on stage." His intuition was spot on. Park Seo Jin not only delivered a stellar live performance of 'Prince of the Sea' but also elevated the atmosphere with a dazzling drum performance, turning the stage into a lively festival.

KBS 2TV’s 'synchroU' is a unique variety music show where top-tier artists present astonishing cover performances. The panel, consisting of MC Yoo Jae Suk, Lee Jeok, Lee Yong Jin, Hoshi, Karina, and Jonathan, attempts to identify the real 1% voices hidden among AI-generated performances. The show promises endless surprises and entertainment, airing every Monday at 8:30 PM.