Crack is not the drug you would expect a celebrity to get hooked on. Aren’t they at least rich enough to afford some pure cocaine or something classy like that? We know Charlie Sheen’s wife, Brooke Mueller, was on something when she entered rehab last week, but now RadarOnline.com is reporting a rumor that it was for a raging crack habit. Then again, I guess you’d have to be on crack to marry Charlie and procreate with him? Yeah, that was a really low blow. [RadarOnline.com]

After the jump, some more celebrities who supposedly have hit the rock.