The UFC star and the rapper got into a physical altercation on the red carpet before the show kicked off in New York’s Barclays Center.
Photos of the incident appear to show McGregor lunging at MGK while several people try to separate them.
McGregor later insisted to ET backstage that “absolutely nothing” happened between them.
“Absolutely nothing. I don’t know. He showed up, and I don’t know. I don’t know the guy,” he told ET’s Rachel Smith.
“Nothing happened with me, I only fight real fighters, people that actually fight, you know what I mean,” Conor continued. “I certainly don’t fight little vanilla boy rappers. I don’t even know the guy. I don’t know anything about him, except that he’s with Megan Fox.”
According to an eyewitness, McGregor and MGK “exchanged some words” on the red carpet, before the MMA fighter lunged at the musician. MGK and Fox subsequently left the carpet and threatened not to pose for photos, the eyewitness says, but then they returned once McGregor left.
— Entertainment Tonight (@etnow) September 13, 2021
McGregor later presented an award to Justin Bieber, while MGK performed “Papercuts” with Travis Barker.