[xDramatick]

THERE'S SO MANY.
I'll go with:
Hairspray - Without Love.

Though very close:
Sunset Boulevard - Sunset Boulevard.
Phantom Of The Opera - The Music Of The Night.
High School Musical - Bet On It.
Wicked - I'm Not That Girl.
Avenue Q - There's A Fine, Fine Line.
Joseph And The Technicolour Dreamcoat - Close Every Door.
Les Miserables - Castle On A Cloud.