Knocking at Your Back Door

"Knocking at Your Back Door" is a song by English hard rock band Deep Purple, the first track on the album Perfect [Strangers (Deep Purple album)|Perfect Strangers], released in October 1984. The song was written by Ritchie Blackmore, Ian Gillan and Roger Glover. The track received heavy airplay at the time and was used by the Seattle SuperSonics in their lineup intro during home games.

Background

The song is lyrically about anal sex, as it uses various sexual innuendos throughout the song. Ian Gillan commented:
After receiving considerable airplay, the song was released commercially in the United States in December 1984, while in the UK, it was released as the second single from the Perfect Strangers album in June 1985.
"Knocking at Your Back Door" was a permanent part of the band's live set until 1994 and sporadically since then. Live albums that include the track are: Nobody's Perfect, In the Absence of Pink, Come Hell or High Water, Live in Europe 1993, and ''Live at Montreux 2011''