Sometimes, hints to the remaining three contestants are given.After this round, the contestants picked will each perform a song as revelation of their identities. Based on this round, the Song Masters each pick one contestant (the Song Master without the selection priority for the First Round will choose first). Second Round (Third Round for the regular broadcast): The first round is replayed among the three contestants, the difference being both Part Songs used for the episode will be combined.If not, an auto-tuned voice will be played. If one team matched the correct singing part (or colour) to the contestant chosen, the original singing voice will be played.After the second Part Song (Second Round for the regular broadcast), the other Song Master will choose one contestant from the remaining four.
The contestants can be of any background, and anyone can apply to be one through the show's official website. They each seek to find the singing partners best suited for them for the perfect harmony collaboration performances, and compete which is the better one. It is a music inference game show where in each episode two reputable musicians (as Song Masters), with their own teams of panelists, find their singing partners among five contestants in which their real identities and singing abilities are unknown.