http://www.youtube.com/watch?v=j8cADX87-2I. I don't like his album stuff, because it sounds too poppy, but the more I hear him live, the more I appreciate him.
http://www.youtube.com/watch?v=PQyUohxmH5k, performed live on The Jonathan Ross Show.
Great voice and rhythm. Bit of a shame he doesn't display all this talent on the album.