Alicia Keys and Kendrick Lamar are making superhero music on their new collaboration "It's on Again." Produced by Pharrell, the song delivers a passionate vibe that deals with answering a higher calling. "It's on Again" will be featured on the Amazing Spider-Man 2 soundtrack, which comes out April 22. The film hits theaters May 2. A video for "It's on Again" has already been shot and will be released soon, though no word on if K-Dot will be sporting a cape. Regardless, it sounds like he and Keys have found their own calling. Check out "It's on Again" below.

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