Glen has seen concerts during 18 years.

Year   Concerts Seen  
2023 4 concerts
2022 8 concerts
2021 2 concerts
2020 1 concert
2019 8 concerts
2018 8 concerts
2017 10 concerts
2016 10 concerts
2015 10 concerts
2014 4 concerts
2013 2 concerts
2012 5 concerts
2010 3 concerts
2008 6 concerts
2007 4 concerts
2005 7 concerts
2004 4 concerts
2003 5 concerts