Twelve contestants design a unique costume with a team of designers. This season, the singers are broken into three groups, each containing four masked celebrities. In each episode, two pairs of contestants battle up until the final for each group wherein the contestants perform a duet before battling it out. The winner's identity isn't revealed until the last episode.

Different from previous seasons, the panellists have one chance to guess the singer's identity collectively. If they manage to guess correctly, the singer will immediately then remove their mask. Guess wrong, and the singer moves on to the next round. However, if they guess incorrectly, an additional Hidden Mask is added to the competition.