Ozzy Osbourne recently spoke to MTV.com about his participation in this summer's Ozzfest after announcing last year that he'd be retiring from his namesake tour.

"I wanted to retire," he explained. "But that lasted half a year. I was bored to death, and I wanted to come back on the road again. I'm not complaining about it, but the downside [to doing Ozzfest] is I never get a chance to go on vacation. Whenever we do go on vacation, it's winter. So this year, I tried to get off the Ozzfest, and [my wife and the festival's architect] Sharon said, 'OK.' But then one guy spoke to one guy and said it wouldn't be Ozzfest if Ozzy isn't there. So [we compromised]. Sharon's idea was to do a couple of headliners on the second stage, and I said, 'That's great. It's right in the midst of the audience.' "

This summer's Ozzfest, which wraps up August 13 in West Palm Beach, Florida, will make stops in 27 cities, with Osbourne scheduled to take the stage for 13 of them — four mainstage appearances and nine on the tour's smaller second stage. But might this — as the rumor mill suggests — be Ozzy's last Ozzfest?

"I will always be involved in it in some way, as long as it carries along — and as long as I'm alive," he said. "It's my wife and I's creation. People say to me, 'What's the trick? How do you do it?' And I can't answer that question. I'm just so grateful and happy [the fans] come out to see the show."

Read more at MTV.com.