Last week, Radar Online produced disturbing audio of actor/director Mel Gibson berating his former girlfriend, Russian pop singer Oksana Grigorieva, for dressing like a "Vegas whore." That would have been horrible enough if the anti-Semitic Aussie (remember The Passion of the Christ and him drunkenly blaming all the world's wars on the "fucking Jews"?) hadn't also dropped two bombs on blacks and Latinos, referring to the latter as "wetbacks" and saying that Oksana's dress would be to blame were she raped by a "pack of niggers." As it turns out, Gibson's lethal weapon is actually the mouth that's connected to his Stone Age brain—and it's sure to kill his career. Or it would if he weren't so rich that he can continue to finance his own films.

The recording of Gibson, which Grigorieva made in case he struck her, is only one of many in which celebrities—who are so often confused with good, likable people—have shown their true colors. From borderline child abuse to the infamous drunk dial, check out the most embarrassing celebrity recordings...