Kendrick Lamar and TDE are being sued for copyright infringement for swiping just about all of an unreleased track called "Loyalty" and making it into the Rihanna featured Damn. track "Loyalty."

Terrance Hayes claims he wrote "Loyalty" in 2011 and recorded it with Josef Leimberg.  Leimberg would later work with Lamar on TPAB.  Hayes alleges his "Loyalty" was on Leimberg's hard drive and that Lamar, Lamar's "Loyalty" co-writer Terrace Martin, and Leimberg swiped it.

“[Kendrick & company] slowed it down through a synthesizer and combined it with another sample to disguise the copying," reads the lawsuit. "The melody of the Infringing Song is identical to the Subject Track with a few minor variations, which can be seen by juxtaposing both melodies. The Infringing Song copies substantial qualitative and quantitative portions of the Subject Track, including the same song title, similar subject matter, substantially similar note combinations and structures, melodies, themes, rhythm, and kick and snare patterns. Both songs use the same chord progressions, melodies and other aspects throughout, and neither song features any changes in the musical elements as the recordings progress toward their conclusions."

Hayes wants all of the profits from the song.

No word from the suit from Kendrick's camp.