Lopez mentioned this on another board and since it wasn't posted here, I looked it up for you. From Liz Smith's column:

«I JUST spoke to somebody who has heard Whitney Houston's new album - her first studio effort in some time. My friend says the big Whitney-Mariah Carey gospel-like inspirational duet, If You Believe, is so dynamic, so full of vocal swoops and such, that no doubt it will be in Patti LaBelle's act any second. But seriously, folks, the word on this is that Whitney sings like she has never sung before!»