Cheyenne Jackson sings "Maria" from West Side Story.

Xanadu's 2008 Tony Awards performance.

Cheyenne Jackson sings "A Change Is Gonna Come."

Cheyenne Jackson sings "I've Got Your Number."

Cheyenne Jackson & Jane Krakowski sing 30 Rock Live warm-up.

Cheyenne Jackson & Kate Baldwin sing "Old Devil Moon."

Alexandra Silber and Cheyenne Jackson sing "One Hand, One Heart" from West Side Story.

Cheyenne Jackson sings "Something's Coming" from West Side Story.

Jackie Evancho and Cheyenne Jackson performing "Say Something."