Blue Öyster Cult "Cultösaurus Erectus"

Cultösaurus Erectus is the seventh studio album by American hard rock band Blue Öyster Cult, released in 1980. Following an experiment with a more-polished sound on the album Mirrors (released the previous year), this recording marked a return to the band's earlier hard-rock sound. The first track, "Black Blade," features lyrics by fantasy and sci-fi writer Michael Moorcock and is about Stormbringer, a black sword wielded by Elric of Melniboné, the most famous character in Moorcock's mythology.

This album also features the first collaboration with British producer Martin Birch (Deep Purple, Fleetwood Mac, Black Sabbath, Iron Maiden), who would go on to produce the successful following album Fire of Unknown Origin in 1981. The riff to Deep Purple's "Smoke on the Water," a song Birch helped record, is referenced in "The Marshall Plan." "The Marshall Plan" itself is not about the World War II scenario, but a reference to the amplifier manufacturer.

While the album did sell more than its predecessor, it stalled at Gold status. However, during this time Blue Öyster Cult was still filling large venues. The tour promoting Cultösaurus Erectus found the band co-headlining sports arenas in the United States with Black Sabbath as part of the Black and Blue Tour.

The album cover features a part of the painting Behemoth's World by British artist Richard Clifton-Dey. The cover art was also used for the 1991 video game Ork.