(L-R) Nick Jonas, Joe Jonas, and Kevin Jonas of Jonas Brothers pose backstage for the 2021 Billboard Music Awards, broadcast on May 23, 2021 at Microsoft Theater in Los Angeles, California. (L-R) Luke Hemsworth, Liam Hemsworth and Chris Hemsworth attend the 2014 Vanity Fair Oscar Party hosted by Graydon Carter on March 2, 2014 in West Hollywood, California.

The ultimate battle of the bro’s gauntlet has been thrown down — The Jonas Brothers challenged the Hemsworth brothers to a UFC showdown.

On Tuesday’s (July 20) episode of The Tonight Show with Jimmy Fallon, the host asked the brothers about a memoir they are releasing titled Blood, which Kevin Jonas joked, “We wrote it with blood.”

Joe Jonas contested that and said, “Uh no, actually. That’s not the reason. We’re gonna take a note out of all the YouTubers that are having these boxing matches — we’re gonna have a big UFC match. It’s gonna be us versus the Hemsworth brothers. The Hemsworths haven’t emailed us back yet, but it’s gonna be big.”

“Did you just say it’s gonna be us against Thor?” Kevin asked his brother.

Fallon was shaken by Joe’s mention of the notoriously fit Aussies, covering his face and yelled, “Oh no! Don’t do it! Don’t do it please!” He then suggested, “Maybe there’s a couple Hemsworths out there that we don’t know of that you can maybe then challenge.”

Joe agreed that was probably a good move. “A little bit closer to our height as well,” he added.

The Hemsworth brothers have yet to accept or acknowledge the challenge laid out by the Jo-bros.

Watch the Jonas Brothers on The Tonight Show below:

The trio was also promoting their NBC special, Olympic Dreams Featuring Jonas Brothers which aired last night. Kevin, Joe and Nick prove they have what it takes to compete at an Olympic level in the special. “Becoming Olympians was a dream established at an early age. It was a dream only sidelined by another lofty goal — pop superstardom,” the program says.

“Can I get an 11?” Nick wrote on Twitter doing a tumbling routine.

“10s across the board baby!” Joe wrote while hilariously clicking his heels towards the camera in a Tweet.

Kevin impressively lands multiple back handsprings in the Tweet below, humbly writing, “Feels like a 10.”

Check out the first few minutes below:

It's On! Watch the First Few Minutes of Olympic Dreams Featuring Jonas Brothers

Kevin, Joe and Nick Jonas are ready to prove they have what it takes to compete at an Olympic level. Check out the first few minutes of Olympic Dreams Featur...

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