Boom took the mic on the January 13th installment of 'Immortal Song'.

SEE ALSO: TV personality Boom and his wife welcome their first daughter

For the Lee Gun Woo special, Boom covered the 1986 hit "Ecstatic Confession" by Yoon Soo Il. With his sunglasses on, the singer-turned-MC brought his infectious energy to the stage as the second performer up, and he got the crowd smiling.



[Spoilers Below]






Though Boom was able to win 2 rounds by defeating KARD and Bae Da Hae, it was GB9 who took the final win.