If you remember back in 2012, rapper Kendrick Lamar recruited pop icon Lady Gaga to record a track for his then album good kid, m.A.A.d city, but the song never saw the light of day. Apparently, the two artists did in fact lay down the track, which is titled "Partynauseous," and now it has “leaked” -- you can listen to it below.

Since its inception, Gaga had supposedly used portions of the track during her ARTPOP tour, but the song itself was shelved due to creative differences between the artists. Both had commented on the collabo at the time, with nothing but respect for each other – Gaga even mentioned to her Little Monsters that it didn’t work out because she “was not willing to compromise musically” but it would still be unearthed at a later time for a different project.

Lady Gaga is known to collaborate with many popular artists spanning multiple genres, even recently recording with Paul McCartney and Pearl Jam's Mike McCready.

Lamar recently released his third studio album, To Pimp a Butterfly (out now via Top Dawg/Aftermath), and is also a well-known collaborator, recently tracking a song with Flying Lotus.

Listen to Kendrick Lamar + Lady Gaga's "Partynauseous"