What UK music download sites (legal only!) can a US citizen buy from?

I’m looking for a legal music download site to buy Kate Bush’s CD single “King of the Mountain”. The UK version has her version of “Sexual Healing” as a bonus. That’s the song I’d like to buy, but it won’t be released in the US until 11/22. According to Amazon, it’ll cost $12.99!

I loves ya Kate, but that’s a bit steep for one song (I’m going to buy Aerial anyway).