Blue Oyster Cult

"We're all at the mercy of the cowbell sketch in different ways," Buck Dharma says.

Veteran band cleans out its closet with unearthed recordings from its 1978-83 vaults.

The LP's first single, "So Supernatural," is out now.

Half of the songs already written for 15th studio LP, due in 2020.

The whole thing was so surreal that it ended up being tucked away toward the end of an episode.