In 2011 Billy Oleson saw 5 performances during 2 concerts with 5 bands at 2 venues in 2 locations.

Date Concert Venue Location
May 18, 2011
System of a Down / Gogol Bordello
  Setlists
Fiddler's Green Amphitheatre Greenwood Village, Colorado, United States
Apr 21, 2011
Deftones / The Dillinger Escape Plan / Funeral Party
  Setlists
In the Venue Salt Lake City, Utah, United States