2 / 11
Christina Aguilera
Dear celebs -- including you, Christina Aguilera -- it's never cold enough in Los Angeles to warrant wearing a stocking hat. It's also never Halloween enough to warrant wearing those leggings. (10/31/2012)

What to Read Next

What Were They Thinking?!

November 3, 2012

This week's worst-dressed crew includes Sharon Stone, Kourtney Kardashian, and Christina Aguilera. -- By Matt Whitfield, Yahoo! Staff