Alicia Keys and Kendrick Lamar brought their musical superpowers to The Tonight Show Starring Jimmy Fallon last night (Apr. 25) as they took the stage to perform "It's On Again." Backed by Hans Zimmer - who teamed up with Pharrell Williams to score the upcoming Amazing Spider-Man 2 - the appearance marked their first live performance of the Williams-produced track. The live rendition features an intense moment, with K. Dot fervently spitting his opening verse as A. Keys strokes the piano in the background.
Watch Alicia Keys and Kendrick Lamar perform "It's On Again" in the video above.