Here's another overseas artist I'm newly in love with - Sia. (although this song is actually quite old - and I think my aunt and uncle have long been fans if i'm not mistaken?).
Straight from Aus... no wonder I love her.
p.s. have you heard of grooveshark? You can search for music and create playlists- great way to decide if you want to buy a cd on itunes or not. (careful though, it eats bandwidth!)