What are some of the most unique/obscure bands and artists you listen to

Bands, artists, or single albums. It can be from any year and any country. I need some new suggestions my friends. I'm already big into:

Zappa

Ween

The Residents

Mr. Bungle and all associated bands

Butthole Surfers

John Zorn

Cardiacs

Renaldo and the Loaf

Melt Banana

Gong

Sun Ra

Edit: thanks to everyone for contributing! I knew fellow Primus fans could give me the lead on some great new bands. This is incredible and I will check out every band posted.