Rachel McAdams Wore a Messy, Full-Bodied Bob; Mark Ronson Does Not Enjoy Being Blond

• Rachel McAdams wore her hair in a tousled, volumized bob for the New York premiere of her new movie, Morning Glory. [Beauty Counter/Style]

• Mark Ronson has not been having any more fun since going blond. "In fact, I think I've had less fun," he said. [MTV Style]

• BellaSugar has compiled a list of weird ingredients that are widely used in beauty products, including — no joke — baby foreskin and that slimy stuff that snails leave behind when they’re slithering along. [BellaSugar]

• Nars has made a toned-down version of its ever-popular Orgasm blush, called Sex Appeal, for its holiday collection. The color is softer, peachier, and contains less shimmer. [BellaSugar]

• A new reality show, Mistress Makeover, will give former mistresses of famous people surgical makeovers. On the lineup: two former flames of Tiger Woods, Jamie Jungers and Joslyn James, plus Reggie Bush's ex January Gessert and Ashton Kutcher's alleged former lady-friend Brittany Jones. [BlackBook]

• Here are three tips for a quicker, sleeker blowout that mercifully don't involve annoying hair clips or extra products. [Girls in the Beauty Dept./Glamour]