In 2005 Ahlgren saw 2 performances during 2 concerts with 2 bands at 2 venues in 2 locations.

Date   Concert   Venue   Location  
Oct 12, 2005
The Rolling Stones
  Setlists
Wachovia Center Philadelphia, Pennsylvania, United States
May 17, 2005
U2
  Setlists
Giants Stadium East Rutherford, New Jersey, United States