Eric Jay Bloom is an American musician, singer and songwriter. He is best known as the co-lead vocalist, guitar and keyboard/synthesizer player for the long-running band Blue Öyster Cult, with work on more than 20 albums. Much of his lyrical content relates to his lifelong interest in science fiction.

Blue Öyster Cult is an American hard rock band formed on Long Island in Stony Brook, New York, in 1967. The band has sold 25 million records worldwide, including 7 million in the United States. The band's fusion of hard rock with psychedelia, and penchant for occult, fantastical and tongue-in-cheek lyrics, had a major influence on heavy metal music. They developed a cult following and, while achieving mainstream hits like "(Don't Fear) The Reaper" (1976) and "Burnin' for You" (1981), their commercial success was limited. Both songs, and others such as "Godzilla" (1977), remain classic rock radio staples. The band were early adopters of the music video format, and their videos received heavy rotation on MTV in its early period.