The Cramps were an American garage punk band, formed in 1976 and active until 2009. The band split after the death of lead singer Lux Interior. Their line-up rotated much over their existence, with the husband and wife duo of Interior and lead guitarist and occasional bass guitarist Poison Ivy the only permanent members. The addition of guitarist Bryan Gregory and drummer Pam Ballam resulted in the first complete lineup in April 1976. They were part of the early CBGB punk rock movement that had emerged in New York. The Cramps are noted as influencing a number of musical styles: not only were they one of the first garage punk bands, they are also widely recognized as one of the prime innovators of psychobilly.