Hollywood's Most Mismatched Couples (PHOTOS)
As Paula Abdul once sang, opposites attract.
That fact is alive and well in the Hollywood dating world, as glamorous beauties fall for less-than-groomed rockers and average joes all the time. Take The Big Bang Theory star Kaley Cuoco, who revealed this week that she secretly dated her nerdier cast mate Johnny Galecki. Sadly, that pairing didn't last and, in fact, neither did most of the slightly-off relationships in our brief history of Hollywood's Most Mismatched Couples.