Rihanna Will Shank You

A HISTORY OF VIOLENCE Rihanna

Rihanna: The "Umbrella" songstress won't hesitate to cut a bitch. She told Complex that she once hit her younger brother "in the face with a glass bottle." Maybe that's why she was wearing a dominatrix get-up at the MTV Movie Awards on Sunday.

Larry David: The Curb Your Enthusiasm star has split from his wife of 14 years, environmentalist Laurie, who was recently on tour with Sheryl Crow to raise awareness about global warming. Could it have been Laurie's insistence on using one square of toilet paper that caused the separation?

Owen Wilson: The Butterscotch Stallion must run free! Sometime-girlfriend Kate Hudson is reportedly "over" her relationship with Wilson. Single-mom Kate is "complaining to everyone that she made all these sacrifices and he can't be in a committed relationship."

Casey Johnson: The Johnson & Johnson heiress has finally adopted a little foreign baby all her own. According to last year's Vanity Fair profile of Johnson, the baby already has a name—Ava-Monroe after Marilyn, Casey's "idol"—and a wardrobe. Johnson got the infant "the cutest leopard baby bikini." Not even mobile yet and the baby is dressed like a streetwalker—adorable!