Demi Lovato Knocks Out Her Trainer's Tooth Out!

Via Access/ Sorry not sorry! Demi Lovato must have landed a heck of a punch during her latest boxing session. The pop superstar accidentally knocked out her pal and trainer Jay Glazer's tooth and shared can't-miss video of the aftermath! Find out how Jay reacted to the mishap, and if Demi is ready to get back in the ring.



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