Knightley poses topless for US magazine

Keira Knightley has gone topless for the cover of an upcoming US magazine.

The actress wears trousers with braces and a glove on one hand for the provocative new Sam Taylor-Wood shot that graces the cover of the December/January issue of 'Interview' magazine.

The actress says: "We ended by taking my clothes off. Why does that always happen? Because I say yes, I suppose!"