Don't mess with Kid Rock's woman -- current or ex. "Kid is divorcing Pam Anderson, but he heard [her ex] Tommy [Lee] was hooking up with her, and got all riled up," a spy tells Page Six. "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." It was a close call, but Kid's not ready to give in just yet. And while we don't condone violence, Tommy is sorta asking to get jumped. "Tommy has been calling Kid Rock and taunting him about Pam, and Kid Rock was ready to kick some serious a**," a source says. Sounds like this "rebel" has found a cause -- and it ain't pretty.