Demi Lovato is ready for some serious action for her birthday.

The pop star, who turns 25 on Sunday, August 20, won't be wasting her special celebration at some Hollywood party, New York City club or tropical island getaway. Instead, she'll head to Las Vegas the following weekend (Saturday, August 26) to witness a fight—a boxing match at the T-Mobile Arena, to be specific.

"I am going to the Conor McGregor-Floyd Mayweather fight," the singer told Entertainment Tonight. "That's all I've been looking forward to doing… Ever since the fight was announced, I was like, I'm going to that fight. It's gonna be amazing and I can't wait to see who wins!"

Of course, the birthday girl, who has passionately trained in jiu-jitsu, won't spend her celebration alone.

"I'll go with friends," she said. "Yeah, that's what I think about when I think about my 25th birthday. I don't even have a party planned. I'm just thinking about the fight."

Meanwhile, it won't be long until Lovato is her own fighting champion, revealing to ET that she plans to have a bue belt "probably by the end of the year."

"I've been a white belt for over a year now and so it's time," she explained. "But I can't, you can't ask for it… It goes white, blue, purple, brown, black... But we'll see what happens."

Good luck and happy (early) birthday, Demi!

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