Justin Null has seen concerts during 18 years.

Year   Concerts Seen  
2023 1 concert
2022 4 concerts
2021 1 concert
2020 1 concert
2019 4 concerts
2018 1 concert
2017 3 concerts
2016 2 concerts
2014 1 concert
2012 1 concert
2009 1 concert
2007 1 concert
2005 1 concert
2004 2 concerts
2003 2 concerts
2002 3 concerts
1999 2 concerts
1997 1 concert