10 Celebrities who are huge MMA fans

6. Justin Beiber

Justin beliebs Floyd is number one

Yes, it's true. Sorry fight fans, you share an interest with the Biebs and it isn't Selena Gomez. The Canadian pop sensation is a very close friend of Floyd Mayweather and even walked out with him for his epic clash with Manny Pacquiao in 2015. After all that hanging out, Mayweather's fighting spirit might have rubbed off on Bieber but certainly not his smarts.

After Nate Diaz beat Conor McGregor at UFC 196, Bieber went so far as to "critique Diaz's technique", but most epic part was the UFC star's response to it. In an interview with Megan Olivi, Diaz laughed at the thought of a Twitter beef with the likes of Bieber, considering he gets locked in a cage and punches trained killers for a living. Bieber himself later "squashed the beef" when he ran into Diaz at a nightclub.