Looks like thangs are going DOWN between Danity Kane members Aubrey O'Day and Dawn Richard. TMZ reports that cops were called when a dispute got violent during a recent recording session. They say Dawn socked Aubrey in the head…and none of this open handed slap stuff…it was a closed fist punch to the dome!!! Now you might be wondering where Aundrea is at (she's the one in the pic 2nd from the right), well she dropped out of the group after they reunited last year. That was also because of drama.