He's by far an awesome bassist, vocalist (in his own different way) and performer! Primus is my absolutely most favourite current band, and can't wait for any word on their next album. He's been in tonnes of other awesome group setups as well, including some of my favourites:

~Colonel Les Claypool's Fearless Flying Frog Brigade (Best Floyd cover ever!)
~Oysterhead
~The Les Claypool Frog Brigade
~Colonel Claypool's Bucket of Bernie Brains
~Solo Work

I love him!