Ariana Grande Stuns with Whitney Houston ‘I Have Nothing’ Cover

WATCH: Justin Bieber Makes Surprise Appearance
Justin Bieber made yet another apology at Ariana Grande's concert.

Fans in Inglewood, California got a real treat when Ariana Grande brought songwriter David Foster to the sage for a special performance.

Calling him “one of the most incredible songwriters of all time” and the iconic song, “I Have Nothing,” which originally appeared in Whitney Houston’s 1992 film, The Bodyguard, one of her “favorite songs of all time.”

“It was my go-to song to sing at a gay bar, at a karaoke bar, anywhere,” Grande explained, and acknowledging the experience to perform with Foster, “such a surreal experience.”

Then Grande proceeded to nail every note while perched on top of a piano.

Watch and behold Ariana in the video above.