Vromance put on a performance they don't want you to forget on the April 29 installment of 'Immortal Song'.

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For the Lee Hyun & Lee Soo Mi�special, the vocal group covered Lee Hyun's "Please Don't Forget", explaining, "We'll do our best as we've prepared a performance you won't forget." Their vocals were amazing as expected, but the singers also made sure to add in unexpected choreography for a musical-like stage.

Spoilers Below:

Though legendary singer Lee Hyun was satisfied with the cover, Vromance weren't able to defeat Son Joon Ho, who�went on�to win the final trophy.�