Idina Menzel Belts Out an 'If/Then' Song for 'Letterman' (Video)

Idina Menzel heads into her car following an appearance on The Late Show with David Letterman on Thursday evening (May 8) at the Ed Sullivan Theatre in New York City.

The 42-year-old actress was on the program to sing in song from her new Broadway musical If/Then and to promote her upcoming concert at Radio City Music Hall.

PHOTOS: Check out the latest pics of Idina Menzel

Of course, Idina was once again asked to talk about performing at the Oscars and her thoughts on John Travolta calling her Adele Dazeem. Any predictions for when those questions will stop?!

FYI: Idina is wearing a Zac Posen dress, Oscar Tiye heels, and Danielle Queller earrings.

Click inside to watch Idina Menzel‘s interview from the appearance…