Gage O'brien has seen concerts during 20 years.

Year   Concerts Seen  
2024 17 concerts
2023 26 concerts
2022 15 concerts
2020 2 concerts
2019 12 concerts
2018 22 concerts
2017 15 concerts
2016 18 concerts
2015 8 concerts
2014 11 concerts
2013 15 concerts
2012 18 concerts
2011 7 concerts
2010 12 concerts
2009 24 concerts
2008 12 concerts
2007 4 concerts
2006 1 concert
2005 2 concerts
2001 2 concerts