Jason Armstrong has seen concerts during 16 years.

Year   Concerts Seen  
2025 1 concert
2024 5 concerts
2023 7 concerts
2022 7 concerts
2016 2 concerts
2015 1 concert
2013 2 concerts
2007 1 concert
2005 1 concert
2002 1 concert
1999 1 concert
1998 1 concert
1997 1 concert
1996 4 concerts
1995 5 concerts
1993 1 concert