Sources are saying Young Money CEO Lil Wayne was involved in a massive brawl, after a radio concert in Los Angeles over the weekend.

Sources say that Lil Wayne appeared at The “Cali Christmas Show,” on December 14, where he was supposed to take the stage with Kendrick Lamar.

An eyewitness told gossip website Hollyscoop.com that a brawl broke out between the rapper and unknown individuals backstage at the Gibson Amphitheater, where the concert took place.

“Punches were thrown but no arrests were made,” an eyewitness said. “It was a serious fight and was witnessed by everyone who was backstage.”