Griffin99on has seen concerts during 23 years.

Year   Concerts Seen  
2023 1 concert
2022 1 concert
2019 3 concerts
2018 4 concerts
2017 2 concerts
2016 1 concert
2014 3 concerts
2013 2 concerts
2012 3 concerts
2011 1 concert
2009 1 concert
2008 1 concert
2006 2 concerts
2005 2 concerts
2000 1 concert
1996 1 concert
1990 1 concert
1989 1 concert
1987 1 concert
1986 1 concert
1984 1 concert
1981 1 concert
1980 1 concert