KBS1's 'TV Show Genuine Masterpieces' episode 1527, airing on the 21st at 11:10 a.m., features K-pop stars exploring the secrets of a mural painted by modern art prodigy Mukro Lee Yong-woo at age 18 and a rare ceramic piece. Three K-pop representatives participate in the competition for top honor: Sungmin, who transformed from Super Junior's lead vocalist to a trot singer; Hyojin, the vocal leader of ONF who recently returned with their second full-length album 'ONF:MY SELF'; and Seungjun, the performance leader. The three brought heat to the on-site atmosphere with excellent senior-junior chemistry and outstanding variety instincts. Notably, Sungmin expressed strong resolve to win a janggu (traditional drum) this time, as his son took the one he received during his last appearance. ONF showcased their appeal as a hit-song powerhouse starting from the title track 'Open the Door'. One appraisal panel member emerged as an early frontrunner through remarkable deduction, intensifying the competition.