In 1999 Optimusprimerib saw 10 performances during 2 concerts with 10 bands at 2 venues in 2 locations.

Date   Concert   Venue   Location  
Aug 28, 1999
Weird Al Yankovic
  Setlists
Silver Mtn Ampitheater Kellogg, ID
Jul 18, 1999
Ozzfest 1999
Black Sabbath / Rob Zombie / Deftones / Slayer / Primus / Godsmack / System of a Down / Fear Factory / Slipknot / Static-X
  Photos   Setlists
The Gorge Amphitheatre George, Washington, United States