Aiden O'brien has seen concerts during 16 years.

Year   Concerts Seen  
2024 12 concerts
2023 17 concerts
2022 14 concerts
2021 2 concerts
2019 5 concerts
2018 10 concerts
2017 7 concerts
2016 12 concerts
2015 5 concerts
2014 4 concerts
2013 8 concerts
2011 8 concerts
2010 4 concerts
2009 3 concerts
2008 3 concerts
2007 1 concert