Demi Lovato Knocks Down Sylvester Stallone in Epic Boxing Match -- Watch!

Rocky Lovato!

Demi Lovato's got a mean right hook!

That's what Rocky star Sylvester Stallone found out after a bout with the “Confident” singer, who knocked him to the ground!

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"Just knocking out Rocky (@officialslystallone) easy day at @unbreakableperformance," the 24-year-old artist posted to Instagram on Wednesday.

In a video from the Unbreakable Performance Center in Los Angeles, Stallone can be heard joking, "I slipped! I swear, it was an accident!" Moments later, the duo sweetly hugged it out.

The 70-year-old actor shared the same clip to his own Instagram, writing, "Rocky gets knocked out by his long-lost daughter, Roxana … Starring Demi Lovato @ddlovato. The Unthinkable At Unbreakable."

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Lovato -- who frequently shares video of her workouts on social media -- is no stranger to the boxing gloves.

Last month, ET spoke to personal development coach Mike Bayer -- who founded and now co-owns the mental health facility CAST Centers with Lovato -- about how staying physical helps the singer achieve her own wellness goals.

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“Trying to make yourself do something that you don’t enjoy doing just doesn’t work, so my job is to figure out a strategy," he explained. "Demi is doing Jiu-Jitsu, and she’s already got a stripe on her belt. She loves Jiu-Jitsu, and she loves kickboxing, and I create a plan around that because I knew that for her, that would be a passion. That would be enjoyable. That would make her feel accomplished."

Doing what she loves has clearly payed off for Lovato -- we wouldn't want to face off with her in a ring anytime soon!

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