Ozzy Osbourne says aliens definitely exist, and you'd have to be "mad" to think we're alone in the universe.
The Prince of Darkness opened up a little about aliens and a whole host of other topics in a Reddit "Ask Me Anything" this week.
Asked about the inspiration for his new music video, Scary Little Green Men, the rocker said it was aliens, adding "There has got to be other life out there, why should we be the only planet with life?"
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