Poison front man Bret Michaels -- who took a spill Sunday after colliding with a setpiece during the Tony Awards -- had three stitches put in his lip and has fractured his nose, the Associated Press is reporting.  He's also undergoing a precautionary CAT scan -- but isn't suffering from sour grapes.  He reportedly laughed backstage at host Neil Patrick Harris' remark that the singer "gave 'head-banging' a whole new meaning."