In 1999 Patrick McColligan saw 20 performances during 2 concerts with 19 bands at 2 venues in 2 locations.

Date Concert Venue Location
Sep 18, 1999
Coal Chamber / Machine Head / Slipknot / Amen
  Setlists
Asbury Park Convention Hall Asbury Park, New Jersey, United States
Jun 08, 1999
Ozzfest 1999
Black Sabbath / Rob Zombie / Slayer / Deftones / System of a Down / Slipknot / Godsmack / Primus / Fear Factory / Static-X / (həd) p.e. / Puya / Apartment 26 / Drain STH / Flashpoint / Pushmonkey
  Setlists
PNC Bank Arts Center Holmdel, New Jersey, United States