Lady Gaga, Kendrick Lamar Talk Absence of Collabo on 'good kid, m.A.A.d city' Album

July 17: Lady Gaga and Kendrick Lamar hang out in the studio.

When Kendrick Lamar revealed the tracklisting to his debut album, "good kid, m.A.A.d city" on Tuesday (Oct. 2), many were surprised to see that his collaboration with Lady Gaga, " PARTYNAUSEOUS," wasn't listed.

K.Dot told Power 105.1's The Breakfast Club that the collaboration didn't make the cut and alluded that " PARTYNAUSEOUS" didn't coincide with album's concept.

"Me and Lady Gaga, we really good friends. She's not on the album. We got some records, but when I was breaking down the bulk of the album, the ones we picked, we set them aside for future reference," the West Coast lyricist said. "I already had everything premeditated for this day, for October 22nd."

Lady Gaga reached out to her Little Monsters to touch on the absence of " PARTYNAUSEOUS." Gaga assures her fans that they will hear the collaboration between her and her close friend "at a different time, for a different project."

"I apologize to the fans that this situation with Partynausous is confusing. To it clear it up I must explain this. When I collaborate with an artist i work solely with them, not with their camps or management. Its purely organic and creative. I love Kendrick dearly as a friend, but was not willing to compromise musically to the changes his team was making to my music. This is why I am not his record. I have a very specific vision as a producer and songwriter, and I always have. That song will be released at a different time, for a different project. I love you, and think you should check out his stuff because he is truly great. He's a good kid, its just sometimes a mad city. -LG"