Alicia Keys "It's On Again" (ft. Kendrick Lamar) (prod. by Pharrell)

Alicia Keys 'It's On Again' (ft. Kendrick Lamar) (prod. by Pharrell)
The soundtrack for the upcoming superhero flick The Amazing Spider-Man 2 has some musical heroes of its own, including Alicia Keys, Kendrick Lamar and Pharrell, all of whom team up on the new song "It's On Again."

Though the song sees Pharrell sitting in the producer's chair, it's a marked difference from his 2013 efforts, trading in percussive dance music for suave pop rock. Kendrick Lamar spits aggressive raps over crunchy guitars in the song's intro before Alicia Keys smooths things over.

Check out "It's On Again" below. The Amazing Spider-Man 2 Original Motion Picture Soundtrack will be out on April 22.