Motley Crue was playing in Canada on Saturday, and some guy almost ended the show when he rushed the stage and knocked Mick Mars to the ground.  Mick had to be helped off the stage, and the whole band went with him.

Here's Tommy Lee and Vince Neil as they left the stage.  (Tommy says, quote, "What the [eff] is wrong with you, you [effing] idiot?"  And Vince says, quote, "We might be back."

Check it out below: WARNING NSFW LANGUAGE