Big Bang's charismatic rapper, T.O.P, will be making an appearance on 'I Am A Singer'. On December 5th, T.O.P was seen on the recording of the legendary SanUllim special to cheer on fellow labelmate, Gummy. According to those who observed the recording, T.O.P made a special featuring on Gummy's cover of SanUllim's "Rascal".  A source revealed to Star News, "While showcasing her distinct style during her rendition of 'Rascal', T.O.P made a surprise appearance - heating up the atmosphere of the show... The lively rhythm and the cooperation between the two gained much cheer and applause from the audience." Gummy had performed "Rascal" earlier in the mid-examination in front of Kim Chang Wan (SanUllim's vocalist), and earned praises from him such as "You have completely understood the original song. It felt more free than the SanUllim's original." Source + Photo: Star News