I just went over to the Buckethead wiki page to see if I was right about Saul Williams guesting on his album, and I saw this from Ozzy Osbourne:
In an interview with
Revolver, Ozzy Osbourne stated that he had offered to have Buckethead play guitar in his band at Ozzfest. Ozzy quickly changed his mind after meeting with him, and realizing that Buckethead would not remove his costume to be accepted by Ozzy, said:
"I tried out that Buckethead guy. I met with him and asked him to work with me, but only if he got rid of the ****ing bucket. So I came back a bit later, and he's wearing this green ****ing Martian's-hat thing! I said, 'Look, just be yourself.' He told me his name was Brian, so I said that's what I'd call him. He says, 'No one calls me Brian except my mother.' So I said, 'Pretend I'm your mum, then!' I haven't even got out of the room and I'm already playing ****ing mind games with the guy. What happens if one day he's gone and there's a note saying, 'I've been beamed up'? Don't get me wrong, he's a great player. He plays like a mother****er."