Socks to Be You: Cosmo recently asked Britney Spears to describe her offstage style. Her answer: "Flattering yet comfortable." And in the popster's Frappuccino-pickled, extension-tangled mind, this ensemble probably scores high marks on both counts. Because to Brit, nothing says comfy quite like Grandpa Simpson-joins-the-seniors-field-hockey-team tube socks and a white wife-beater T-shirt that probably represents the sum total of what she received from Kevin Federline in their divorce. As for flattering, she has that (barely) covered in a white lace bra that suggests her tasty frozen beverage is very, very cold indeed, and green plaid boy shorts that becomingly expose the edges of the Superman Underoos she borrowed from son Sean Preston.