Kendrick Lamar recently unveiled more information about his next studio album. While a title and tracklist are scarce, the rapper revealed that it will arrive April 14 and it includes his latest song, “HUMBLE.” A closer look at the album credits that arrive with the pre-order has revealed some of the key names involved in the project, including some that weren’t expected. For example: “P. Hewson, D. Evans, A. Clayton & L. Mullen,” better known as U2, are listed as composers on the new album. It’s unclear whether Kendrick sampled a U2 song or wrote a new song with the band. Pitchfork has reached out to reps for U2 and Kendrick for more information.

Elsewhere on the album’s list of composers are “C. Hansen, A. Sowinski, M Tavares & L. Whitty,” who make up BADBADNOTGOOD. Mike WiLL-Made It (who produced “HUMBLE.”), DJ Dahi, Sounwave, 9th Wonder, the Alchemist, and others can also be found on the list. Track 4 notably lists one “J. Blake” as a composer, who could potentially be James Blake.