Justin Martinson has seen concerts during 15 years.

Year   Concerts Seen  
2022 2 concerts
2021 1 concert
2019 1 concert
2018 2 concerts
2016 2 concerts
2015 1 concert
2014 3 concerts
2013 1 concert
2012 1 concert
2011 2 concerts
2010 1 concert
2008 1 concert
2007 4 concerts
2006 2 concerts
2005 1 concert