The Essential Ozzy Osbourne ofrece una visión completa de la carrera del "Príncipe de las Tinieblas", desde sus inicios con Black Sabbath hasta su exitosa carrera en solitario. La selección de canciones abarca sus momentos más emblemáticos, incluyendo "Crazy Train", "Mr. Crowley" y "No More Tears". Esta recopilación es ideal tanto para nuevos oyentes como para fanáticos de toda la vida que desean revivir los clásicos de Ozzy.

1-01        Crazy Train    4:51
1-02        Mr. Crowley    4:55
1-03        I Don't Know (Live With Randy Rhoads)    5:01
1-04        Suicide Solution    4:16
1-05        Goodbye To Romance    5:33
1-06        Over The Mountain    4:31
1-07        Flying High Again    4:38
1-08        Diary Of A Madman    6:14
1-09        Paranoid (Live With Randy Rhoads)    2:52
1-10        Bark At The Moon    4:15
1-11        You're No Different    5:49
1-12        Rock 'N' Roll Rebel    5:23
1-13        Crazy Babies    4:14
1-14        Miracle Man    3:48
1-15        Fire In The Sky    6:24
1-16        Breakin' All The Rules    5:12

2-01        Mama, I'm Coming Home    4:11
2-02        Desire    5:45
2-03        No More Tears    7:23
2-04        Time After Time    4:20
2-05        Road To Nowhere    5:09
2-06        I Don't Want To Change The World (Live)    4:05
2-07        Perry Mason    5:54
2-08        I Just Want You    4:56
2-09        Thunder Underground    6:29
2-10        See You On The Other Side    6:11
2-11        Gets Me Through    5:05
2-12        Dreamer    4:45
2-13        No Easy Way Out    5:06

Primary Artist – Ozzy Osbourne
Featured Artist – Randy Rhoads
Featured Artist – Kelly Osbourne

Guitar (Disc 1: 1–9) – Randy Rhoads
Guitar (Disc 1: 10–13) – Jake E. Lee
Guitar (Disc 1: 14–16), (Disc 2: 1–14) – Zakk Wylde

Bass (Disc 1: 1–8), (Disc 2: 12–14) – Robert Trujillo
Bass (Disc 1: 3, 9) – Rudy Sarzo
Bass (Disc 1: 10–16), (Disc 2: 1–6) – Bob Daisley
Bass (Disc 2: 7) – Mike Inez
Bass (Disc 2: 8–11) – Geezer Butler

Drums (Disc 1: 1–8), (Disc 2: 12–14) – Mike Bordin
Drums (Disc 1: 3, 9–13) – Tommy Aldridge
Drums (Disc 1: 14–16), (Disc 2: 1–7) – Randy Castillo
Drums (Disc 2: 8–11) – Deen Castronovo

Keyboards (Disc 1: 2, 5, 10, 12) – Don Airey
Keyboards (Disc 1: 16), (Disc 2: 2, 4) – John Sinclair
Keyboards (Disc 2: 8–9, 11) – Rick Wakeman

Producer – Ozzy Osbourne
Producer – Michael Beinhorn
Producer – Tim Palmer
Producer – Keith Olsen
Producer – Max Norman
Mastering – Vic Anesini
Cover Photo – Nitin Vadukul
Artwork, Design – David Coleman