We don't know if Venus is in retrograde or God hates us or whatever, but we can scarcely remember a time in recent history where we've been subjected to a series of more non-stop, ear-punishing horrors than the past month. Between recent performances by Jason Castro, Teri Hatcher, and Fantasia (as accompanied by the inmates of the Asylum of Charenton under the direction of the Marquis de Sade), we really didn't know how much more we could take. But those were all American Idol-advanced atrocities, which is why we thought we'd be safe with a seasoned pro like Usher on SNL. As the clip above will make quickly obvious, our assumption was dead wrong. Is this the worst performance in history? Probably not. But it's close, and contains the most hilariously spastic freestyle dance moves we've seen since Richard Simmons's Cranergy endorsement (to say nothing of more flat notes than a Post-It pad). Chris Brown: You're safe for now, Boo. [SNL]