Demi Lovato Shows Off Her Impressive Fighting Skills — Watch!

Don’t mess with Demi Lovato!

The 24-year-old singer showed off her impressive fighting skills in an Instagram video she posted on Friday.

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“Thank you Danielle Martin for letting me kick your butt,” she captioned the clip where she’s seen in a black suit taking down the ​​Jiu Jitsu champ.

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The “Cool f​or the Summer” singer has previously showed off her moves on social media. In a video posted on May 23, Lovato is seen kickboxing in her new Fabletic gear. “Just kicking Jason’s ass in my new @fabletics gear