Kid Rock has surpassed “charmingly aggressive” and has graduated to the “scarily violent” stage.

Kid has it out for rocker Tommy Lee but wasn’t letting a little thing like doors stand in his way over holiday weekend.

When Rock, 35, heard that Lee, 44, was in town to play The Joint with his band, Rock Star Supernova, he headed over to his hotel room to “kick some serious ass,” a source tells Page Six.

“Kid is divorcing Pam Anderson, but he heard [her ex] Tommy was hooking up with her, and got all riled up,” says the source. “So he went over at 6 a.m. with two bodyguards, and began kicking down what he thought was Tommy’s door. Only it wasn’t – and Kid found himself staring at some poor, startled family. He signed an autograph for them as security arrived, then bolted over to the Paradise strip club.”

Lee’s rep tells the New York Post, “Tommy is aware that this incident occurred, but wasn’t at the time as he was staying on another floor.”

While Rock was clearly in the holiday spirit of giving when he elected to sign an autograph for the startled, non-Tommy family before his departure, the real gift was supplying the clan with a post-Christmas story for the ages that starts, “Remember the year Kid Rock kicked in our door in Vegas?” However, next time, Rock should consider going the extra mile in his almsgiving. “Remember the year Kid Rock kicked in our door in Vegas and then apologized by taking us out for celebratory lap dances?” makes for a more riveting tale, and is fun for the whole family.

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