Liv Tyler's 'Bun In My Oven' Halloween Costume Couldn't Be Cuter

It's not even Halloween yet and expectant mama Liv Tyler already has a leg up on the competition with her "bun in my oven" costume. Tyler revealed her adorable Halloween costume on Instagram Wednesday. The costume consisted of a fabric white oven with a bun in the window right over her belly. She paired it with black pants and a retro up-do for a night out. Reports of the actress' pregnancy first surfaced last month. The 37-year-old is already mom to son Milo with British musician Royston Langdo...