One of my favorite bands, Jamestown Revival, just came out with their new album, The Education Of A Wandering Man. Its much more country than their previous folksy-blue albums before.
I find i'm always excited for bands to give me more music, but many of the bands with more than one album tend to change the style of their music for each album. Many times this reflects the parts of life that songwriter is going through at the time, sometimes its just bands trying something new (like the Bee Gees, who were originally a Beatlesque act that delved into psychedelic and folk rock before hitting those high notes and becoming the disco duo we remember today).
What are some of your favorite bands that have switched genres, even if its only for an album or two?