Paula Abdul injures Julianne Hough with hat toss at Billboard Music Awards

Paula Abdul closed out the Billboard Music Awards with a truly knockout performance — and Julianne Hough was almost a casualty of the former "American Idol" judge's choreography.

During her medley of hits, Abdul, 56, tossed her hat into the crowd ... and accidentally whacked the former "Dancing with the Stars" pro right in the neck.

Hough, 30, took the hit in the stride, dramatically gasping at the camera in the moment.

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Posting a selfie in a neck brace after the show, Hough wrote, "The result of the honor of being hit in the neck by @PaulaAbdul's flying hat! Love you, babe!!!"

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Abdul replied, "OMG I'M PEEING MY PANTS!!!! You know it was with love."

Paula Abdul accidentally whacked Julianne Hough with her hat toss at the 2019 Billboard Music Awards.

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Abdul’s show-stopping performance included her smash hits “Straight Up,”  “(It’s Just) The Way That You Love Me,” “Opposites Attract,” “Cold Hearted Snake” and “Forever Your Girl,” earning a standing ovation at the conclusion of her performance.

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