In 2004 John Mayer saw 24 performances during 4 concerts with 22 bands at 3 venues in 2 locations.

Date Concert Venue Location
Sep 06, 2004
The Allman Brothers Band / Warren Haynes
  Setlists
Darien Lake Performing Arts Center, Six Flags Darien Lake Darien Center, New York, United States
Aug 15, 2004
Rush

30th Anniversary Tour (R30)

  Setlists
Darien Lake Performing Arts Center, Six Flags Darien Lake Darien Center, New York, United States
Jul 10, 2004
Ozzfest 2004 / Black Sabbath / Black Label Society
Black Sabbath / Judas Priest / Slayer / Dimmu Borgir / Superjoint Ritual / Black Label Society / Slipknot / Lamb Of God / Hatebreed / Atreyu / Bleeding Through / Lacuna Coil / Every Time I Die / God Forbid / DevilDriver / Otep / Unearth / Magna Fi / Throwdown / Darkest Hour Show all bands
  Setlists
Ctnow.com Meadows Music Theatre Hartford, Connecticut, United States
Jul 10, 2004
Ozzfest 2004
Ozzfest 2004 / Black Sabbath / Black Label Society / Judas Priest / Slayer / Slipknot / Hatebreed / Lamb Of God / Atreyu / God Forbid / Dimmu Borgir / Superjoint Ritual / Lacuna Coil / Otep / DevilDriver / Bleeding Through / Every Time I Die / Unearth Show all bands
  Setlists
Xfinity Theatre Hartford, Connecticut, United States