Lady Gaga leaks Kendrick Lamar demo

Months before Kendrick Lamar released his critically lauded major-label debut, “good kid, m.A.A.d city,” the Compton rapper collaborated on a couple tracks with one of the biggest pop stars in the world, Lady Gaga.

One of the collaborations between the label mates-turned-friends (both are with Interscope Records), “Partynauseous,” didn’t make the cut due to label holdups and creative differences.

The other, the original version of “Bitch Don’t Kill My Vibe,” was leaked by Gaga to her fans on Twitter on Wednesday night. A Gaga-less version of the trippy cut appears on Lamar’s debut.

“We feel bad about killing your vibe, so here’s the demo you never got to hear,” Gaga wrote when she issued the “LG Mix” of “Bitch Don’t Kill My Vibe.”

The track plays over a video of Gaga chilling in Rio de Janeiro, dancing and boozing on a plane and waving to the throngs of fans hanging outside her hotel. She also issued artwork for the track. On the cover, she’s a scantily clad fairy godmother standing next to a man, presumably Lamar, sporting a Mitt Romney mask.

She addressed “Partynauseous’ ” absence on the record with a statement on her fan site:

“I apologize to the fans that this situation with Partynauseous is confusing. To 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 on 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.”

Listen to the track below, but be warned there is some mild language: