Jonny Blizzard has seen concerts during 13 years.

Year   Concerts Seen  
2021 1 concert
2017 1 concert
2011 1 concert
2010 1 concert
2009 1 concert
2008 3 concerts
2007 1 concert
2004 1 concert
2003 1 concert
1991 2 concerts
1990 3 concerts
1989 3 concerts
1988 1 concert