johnny marr

Watch: Alicia Keys, Kendrick Lamar play “It’s On Again” on the “Tonight Show”

You would've thought it was the Grammys with the amount of star power on "the Tonight Show" stage on Friday. The piano prodigy, Alicia Keys, appeared with Compton's hottest export, Kendrick Lamar, with an assist by ex-Smiths axeman, Johnny Marr, movie composer extraordinaire, Hans Zimmer and producer Araabmuzik to all tag team "It's On Again." The track is taken from presumed summer blockbuster, "The Amazing Spiderman 2." The masterful performance had K Dot introducing Keys with a fury of a thousand punches and reppin' the West Coast with his signature Dodgers flat billed hat.