Jordin Sparks says she "cannot wait" for people to hear "Celebrate," a duet she recorded with the late Whitney Houston that will be on the soundtrack of the movie Sparkle.

She tells Entertainment Weekly that her "jaw was on the floor" when she heard a cut of the R. Kelly-written song the other day. Having grown up with Houston's music, Sparks calls the experience of singing with her "incredible" and "being her friend and hearing how it sounded...amazing."

Sparkle will open August 17th.