In 2004 Mary O Brien836 saw 29 performances during 2 concerts with 22 bands at 1 venue in 1 location.

Date Concert Venue Location
Jul 31, 2004
Ozzfest 2004
Black Sabbath / Judas Priest / Slayer / Dimmu Borgir / Superjoint Ritual / Black Label Society / Slipknot / Hatebreed / Lamb of God / Atreyu / Bleeding Through / Lacuna Coil / Every Time I Die / Unearth / God Forbid / Otep / DevilDriver / Magna-Fi / Throwdown / Darkest Hour Show all bands
  Setlists
Glen Helen Amphitheater San Bernardino, California, United States
Jul 31, 2004
Ozzfest
"Ozzfest" / Ozzy Osbourne / Black Sabbath / Judas Priest / Slayer / Dimmu Borgir / Superjoint Ritual / Slipknot / Hatebreed
  Setlists
Glen Helen Amphitheater San Bernardino, California, United States