Blue Öyster Cult

Blue Öyster Cult is an American rock band formed in 1967, known for blending hard rock and early heavy metal with elements of psychedelic and progressive rock. Their sound features twin-guitar riffs and melodic leads, driving rhythms and occasional keyboards, while lyrics often draw on science fiction, horror and literary themes delivered with dark humor. The band is also recognizable for its theatrical image and for using an umlaut in its name.