A lot of people don't like him, which I never really understood. I absolutely loved his two comedy CDs, and the musical bits are extremely classic. Check out the song (and video) for "Lock 'n Load":
http://www.youtube.com/watch?v=E-mzJRjOw74
How anybody could not like that is beyond me.
I wish he would go back to doing more stand up and comedic music, but I understand why he's been away from it for a while. The guy can act.