But, Grohl does think those who tried to petition to have him taken off the bill--the creator of the petition said him being at the fest was an "outrage"--are just wasting their time.

"I don't know that much about Kanye's music but right now Kanye vs. Glastonbury is about as close to that old school [clashing] vibe as you're going to get," he said, comparing Kanye to Public Enemy. "I don't know who the dude is that started the petition but I think every one of those votes is only fueling Kanye's f-ing fire and it could be the greatest show of all time."

Grohl then added, "It could be a f-ing disaster. It could be Altamont. And that s-t doesn't happen very often. It's exciting man." In even more interesting Foo Fighters/Kanye news, drummer Taylor Hawkins says he is Yeezy's neighbor and actually used to terrorize him with his bike.

"Before he bought a house [in the neighborhood] he was apparently looking at it and this estate agent told me that he was showing him the house and he looks round and says, 'Is this place secure? Can anybody get in or out?' And then right at that time I came flying down the hill [on my bike] into the neighborhood."