Alicia Keys [ft. Kendrick Lamar]: "It's On Again" (via SoundCloud)

Kendrick Lamar and Alicia Keys have teamed up for "It's on Again", a track produced by Pharrell. As previously reported, it'll be featured on the Amazing Spider-Man 2 soundtrack, which features a score by Hans Zimmer, Pharrell, Johnny Marr, Dave Stewart of the Eurythmics, Mike Einziger of Incubus, Junkie XL, Andrew Kawczynski, and Steve Mazzaro. Stream it above via Nah Right:

The soundtrack will also feature new Pharrell songs, as well as music by the Neighbourhood, LIZ, Phosphorescent's "Song for Zula", and more. Alicia Keys shared a statement about "It's On Again":

"I'm very excited to be a part of such a powerful collaboration with Kendrick Lamar, Pharrell Williams and Hans Zimmer. This is the next chapter in the Spider-Man legacy and we really feel ‘It’s On Again’ captures the experience, the story—and most importantly—the meaning behind the film, which is that we all have the potential to be extraordinary. There’s a little bit of a super hero in all of us.”

Kendrick Lamar will be headlining this year's Pitchfork Music Festival. Watch him perform at the 2012 Pitchfork Music Festival: