Dan O has seen concerts during 20 years.

Year   Concerts Seen  
2024 2 concerts
2022 1 concert
2019 1 concert
2017 2 concerts
2010 1 concert
2002 1 concert
2000 1 concert
1997 1 concert
1995 1 concert
1994 4 concerts
1993 5 concerts
1991 4 concerts
1990 5 concerts
1989 1 concert
1988 2 concerts
1987 1 concert
1986 2 concerts
1985 1 concert
1984 1 concert
1981 1 concert