(contactmusic.com) - British beauty Keira Knightley has gone topless for the cover of an upcoming U.S. magazine. The Pirates Of The Caribbean star covers her nipples with braces and a gloved 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!"