Why British entertainers are so popular

From the charming boy bands to the amazing actors to the creative authors, the British people have captured the hearts and minds of the American people (and quite frankly the globe).
But why?
    Well, for starters: they speak English. It sounds simple, but it helps to have a common language between four of the most powerful countries in the world (The UK, the U.S., Australia, and Canada). It also helps that English is the number one second language in the world... Think about it: nearly every famous, intellectual, or important person in the world speaks (or at least understands some) English. Of course, this doesn't explain why British are more famous than other English-Speaking countries, so on to number two...
    Secondly: the accent. You knew this was coming, but it's true. Americans are fascinated with the British accent (myself included). They're just so inexplicably entertaining.