Waka Flocka Flame started off in the rap game under Gucci Mane just a few years ago -- the two called themselves "brothers," but as with any relationship, they've recently been going through their fair share of problems.

On Monday night (March 25), Waka decided to stoke the flames while performing at the Diplomatic Immunity concert in New York City.

During his verse on the Jim Jones song '848,' Waka Flocka switched the bar “Free my brother Gucci” with “F--- that n---- Gucci.”

Initially, the fact that the two rappers were on the outs was just a rumor but after Waka's outburst Monday night -- it's clear that the rift between them is very real.

In a recent interview with The BoomBox, Waka admitted, "The equator used to be tight, but it just gets wider as the years go. S--- happens."

In early March, Gucci Mane took to his Twitter page to announce that Waka had been unceremoniously released from his contract at Gucci's 1017 Brick Squad imprint. Not long after the tweet was sent, Warner Brothers claimed publicly that the 'Trap God' creator had his account hacked.

Watch Waka Flocka's 'For My Dawgs' Video