In 2007 Zach Johnson saw 12 performances during 1 concert with 12 bands at 1 venue in 1 location.

Date   Concert   Venue   Location  
Jul 28, 2007
Ozzfest 2007
Ozzy Osbourne / Lamb Of God / Static-X / Lordi / Hatebreed / Behemoth / Nile / Ankla / The Showdown / 3 Inches Of Blood / Dååth / In This Moment / Chthonic / Circus diablo
  Setlists
Fiddler's Green Amphitheatre Greenwood Village, Colorado, United States