Coldplay

This is an extremely popular UK band, which sets its genre as British pop. They're really creative musicians with a variety of song styles. Their best songs, in my opinion are in the album Viva La Vida, which is also the name of my my very favorite song by them. There are also the songs "Clocks" and "Amsterdam" in the album A Rush of Blood to the Head, which are excellent too. Try listening to them sometime.