'Immortal Song 2' is all about the performers and the stage, but on this latest episode that aired on September 21, the contestants got a little dance crazy in the waiting room.

As revealed in the previous article, ZE:A's Hyungsik got a sexy dance from Ailee and Ivy. When EXO's Lay got up to show off his dance skills, Hyungsik did his own demonstration of Poppin' Hyun Joon's popping and locking which made everyone laugh. Hyungsik then revealed that Poppin' Hyun Joon was his dance instructor.

EXO's Kai also got a little up close and personal with veteran singer Ivy which made fangirls jealous.

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Member Kevin also returned the favor to Ailee with a sexy dance of his own, causing her to say, "This is better than winning 3 times on the show."