Rock 'n' Roll Doctor is a song from heavy metal

Heavy metal music

Heavy metal is a genre of rock music that developed in the late 1960s and early 1970s, largely in the Midlands of the United Kingdom and the United States...

 group Black Sabbath

Black Sabbath

Black Sabbath are an English heavy metal band, formed in Aston, Birmingham in 1969 by Ozzy Osbourne , Tony Iommi , Geezer Butler , and Bill Ward . The band has since experienced multiple line-up changes, with Tony Iommi the only constant presence in the band through the years. A total of 22...

 from the album Technical Ecstasy

Technical Ecstasy

- Personnel :* Ozzy Osbourne – vocals* Tony Iommi – guitar* Geezer Butler – bass guitar* Bill Ward – drums, lead vocals on "It's Alright"* Gerald Woodruffe – keyboards- Release history :-Other resources:...

. The song runs for three minutes and thirty seconds.

The song was first played during the instrumental workout on the 1975 tour (in support of Sabotage).

The vocal version featured on the Technical Ecstasy

Technical Ecstasy

- Personnel :* Ozzy Osbourne – vocals* Tony Iommi – guitar* Geezer Butler – bass guitar* Bill Ward – drums, lead vocals on "It's Alright"* Gerald Woodruffe – keyboards- Release history :-Other resources:...

 tour 1976-77 and was retained for the Never Say Die!

Never Say Die!

-Band:*Ozzy Osbourne – lead vocals*Tony Iommi – guitar, backing vocals on "A Hard Road"*Geezer Butler – bass guitar, backing vocals on "A Hard Road"*Bill Ward – drums, lead vocals on "Swinging the Chain", backing vocals on "A Hard Road"-Additional musicians:...

 tour. It was then dropped but made a short-lived return to the live set on the Born Again tour.