Under Cover is the ninth studio album by English heavy metal vocalist Ozzy Osbourne. The album consists entirely of cover songs, with an emphasis on rock music from the 1960s and 1970s. This is Osbourne's first and only album to feature cover songs from various artists, although in 1982, Osbourne released the live album Speak of the Devil featuring renditions of songs from his time with Black Sabbath. All but four songs were originally released in the box set Prince of Darkness, released earlier the same year. The additional songs are "Rocky Mountain Way", "Sunshine of Your Love", "Woman" and "Go Now".[3] Whilst he cites The Beatles as his favourite band, his favourite song of all time is Procol Harum's "A Whiter Shade of Pale". He had wished to cover this song but was advised against it since it had recently been covered by a "close musical associate" [4] (then-former guitarist Zakk Wylde covered the song with his band Black Label Society on their 2004 album Hangover Music Vol. VI).
The album is also available in DualDisc format. This version contains the bonus track "Changes" (originally by Black Sabbath), performed by Osbourne and his daughter Kelly Osbourne. The DVD side contains all the songs in enhanced stereo, a documentary entitled Dinner with Ozzy and Friends, and a video for the song "In My Life".