Lee Wei
Guest judges may occasionally be introduced, especially in the live finals when the judging panel lineup was increased. Music producer and composer Lee Wei Song was employed as a guest judge for all seasons in the live final. Other guest judges that were instated during the live finals are Lee Shih Shiong in season one, Billy Koh in season two, Kelvin Tan, Maggie Theng and Wu Jia Ming in season three, and Li Feihui Eric Moo in season four. Guest judges were also used in the revival rounds for season three, Dawn Yip joined the judging panel in the first revival round, while Cavin Soh and Maggie Theng joined the second.