Derek M. has seen concerts during 16 years.

Year   Concerts Seen  
2023 2 concerts
2022 3 concerts
2021 1 concert
2018 1 concert
2017 1 concert
2016 2 concerts
2010 1 concert
2008 3 concerts
2007 1 concert
2003 1 concert
1997 1 concert
1996 1 concert
1992 2 concerts
1991 1 concert
1983 1 concert
1982 1 concert