Justin Bieber challenged Tom Cruise to a fight and fans aren't exactly sure why.

The "Sorry" singer's strange request was made on Sunday (June 9) on Twitter just hours after he teased "more music is coming." It’s unclear what prompted the challenge or if it was his idea of a joke, but Bieber said he wants to fight the Mission Impossible star “in the octagon” and openly asked who would be prepared to stage the bout.

"I wanna challenge Tom Cruise to fight in the octagon," he tweeted. "Tom if you don't take this fight your scared and you will never live it down. Who is willing to put on the fight?"

Bieber even directly reached out to UFC president Dana White to host it.

It didn't take long for people to chime in. Irish UFC star Conor McGregor not only said he'd host the event but challenged Mark Wahlberg to get in the ring with him.

If this whole thing sounds really bizarre, you're not alone. People on Twitter are also very confused.

The 56-year-old actor has yet to publicly respond to Bieber's challenge, but according to The Blast, the pop star "doesn’t actually want to fight [Cruise] himself… he was just having a little fun on social media."