When Kendrick Lamar's debut album "good kid m.A.A.d. city" was released in late October, many fans were puzzled as to why there was no track on the LP featuring pop sensation Lady Gaga considering their friendly relationship. But just last week, Lady Gaga posted a video which displayed her travels around the world and the song that was playing in the backdrop caught the attention of many: it was an alternate version of Lamar's track ""B***h, Don't Kill My Vibe" with Gaga's vocals appearing on the hook of the song.

Fans were extremely excited to hear this different version of the song. Kendrick was even caught off guard as well.

"I didn't even know she was gonna put that out," the Compton rapper said. "That was a surprise. I thought she was gonna hold that in the can."

The alternate version wasn't featured on the album, but Lamar wasn't upset that Gaga let it loose.

"I was cool with it," he said. "It showed people we wasn't playin' with it; we was actually in the studio vibing out when we recorded. For her to put it out even undone, that says a lot. That says she's confident not only about her work, but my work."

Source: xxlmag.com