Sir Henry and His Butlers, a Danish rock-pop group, formed in Copenhagen during the summer of 1964. The band initially consisted of Ole Sir Henry Bredahl on vocals and bass, Carsten Elgstrøm on guitar, and Leif Davidsen on drums. They gained early traction by participating in a Beatles-inspired contest at Holte Hallen in April 1964. Following this, the group expanded with Poul Petersen on guitar and Jens Bøgvad replacing Davidsen on drums. Their breakthrough came with the release of their second single "Let's Go" (face B: "Johnny Be Good (By By Johnny)") under the label Sonet in October 1964, which sold over 50,000 copies and became a hit across Denmark, Sweden, and Norway. In January 1965, Tommy Seebach joined as an organist and vocalist, becoming a key figure alongside Bredahl. The group signed with EMI in the same year and released several successful singles, including "Times Are Getting Hard", "Beautiful Brown Eyes", and "Marianne" in 1966. Their unique instrumental track "Camp" (face B: "Pretty Style") became an international hit in 1967, notably in Germany, the Netherlands, and Belgium. The group's style evolved from British beat music to a more original pop sound, culminating in their album H2O in 1968. In 1970, they shortened their name to Sir Henry. Notable albums include Listen!, released in 1973, and Flash Back in 1976. Seebach left for a solo career in 1977, leading to the group's eventual dissolution in 1984.