I enjoy all music as long as it's well performed , one of my favorites aside from the Beatles, is Tower of Power, out of the Oakland/bay area,Ca. they've been around since the 70's and are always changing members but still producing the same great sounds, a lotta brass. Rock/Jazz fusion.
Here's a sample w/ Carlos Santana joining them for a bit.
http://www.youtube.com/watch?v=xE-TfJQ0WKA