Grace Kinstler and Alyssa Wray Duet of Bruno Mars' "Grenade" - American Idol Hollywood Week

Powerhouse vocalists, Grace Kinstler and Alyssa Wray, are paired together for a duet performance that will surely brought down the Dolby Theatre and possibly (definitely)...Katy Perry’s wig! Lionel Richie assures both Grace and Alyssa that everyone already knows their voices are outstandingly powerful, but “how they play off of that power” is what the judges will be watching for. Watch here as Grace and Alyssa deliver a duet performance of “Grenade” by Bruno Mars, unlike any other duet performance we’ve seen!