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Forty years ago today, one of the most infamous moments in rock-and-roll history happened right here in Des Moines.

According to many reports, Ozzy Osbourne bit the head off a bat during his performance at Veterans Memorial Auditorium.

Since then, the so-called Prince of Darkness has capitalized on it.

This month, he launched his own non-fungible tokens called Cryptobatz. Public minting opens in February.

He's also selling bat plush toys with removable heads on his merchandise website.

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