I Don't Know · Ozzy Osbourne Blizzard Of Ozz ℗ 1980 Epic Records, a division of Sony Music Entertainment Released on: 2020-09-18 Vocal, Associated Performer, Producer: Ozzy Osbourne Producer, Guitar: Randy Rhoads Bass Guitar, Producer: Bob Daisley Producer, Drums, Percussion: Lee Kerslake Keyboards: Don Airey Lyricist, Composer: O. Osbourne Lyricist, Composer: B. Daisley Lyricist, Composer: R. Rhoads Engineer: Max Norman