Currently taking a break from touring across the world, Justin Bieber has been hanging out with his wife, Hailey Bieber (Hailey Baldwin), trying to "self-improve" himself.

The might include taking up some MMA lessons or at least practising his ground game after the octagon. On Sunday night, Bieber sent out a random tweet, essentially challenging Tom Cruise to a fight inside the octagon while tagging UFC president Dana White.

That prompted a response from UFC Canada's Twitter account with the classic eye emoji.

”I wanna challenge Tom Cruise to fight in the octagon,” Bieber wrote. β€œTom if you don’t take this fight your scared and you will never live it down. Who is willing to put on the fight? @DanaWhite?”

Do those sound like fighting words to you?

Years ago, Bieber started to mess around in the MMA scene and befriended Floyd Mayweather for a stint.

Most likely, this is just a publicity stunt. But, is there a chance we see some sort of celebrity showdown?