For example, look at White Lies "top played" tracks. It's ONLY their new single:

http://i54.tinypic.com/24orb6r.jpg

The record label has obviously paid for this promotion. Kinda pisses me off though. So when you surf about looking at new artists you can't always be sure if you're listening to what people like (or "recommend") or you're just being fed some promoted new single or something.