He's very much a crossover artist, so it's not easy to categorize him. He started out sounding like a jazz artist (he's a pianist) but he also writes his own stuff. He's covered Cole Porter, but also Radiohead and Rihanna. So really, his music is more like a combination of jazz/pop rock.
is his Rhianna cover, it's fun. :)
my favorite song off the album is called < a href="http://www.youtube.com/watch?v=MlAGeiJRCUc&feature=related">Mixtape.