The song was originally titled "Strange Voyage," but according to Bob Daisley
, who wrote the lyric, Sharon and Ozzy Osbourne changed it after he and drummer Lee Kerslake were booted from the band. Daisley wrote the song with Ozzy, Kerslake and guitarist Randy Rhoads, who were the band for the first two post-Sabbath Ozzy albums: Blizzard of Ozz
and Diary of a Madman
. The foursome started out as a band called Blizzard of Ozz, but when their first album was released, the record company issued it as an Osbourne solo album, so Daisley, Rhoads and Kerslake essentially became Ozzy's backing band.