Silly Billy has seen concerts during 22 years.

Year   Concerts Seen  
2024 2 concerts
2023 8 concerts
2022 10 concerts
2021 4 concerts
2020 2 concerts
2019 5 concerts
2018 5 concerts
2017 4 concerts
2016 6 concerts
2015 4 concerts
2014 10 concerts
2013 4 concerts
2012 17 concerts
2011 9 concerts
2009 7 concerts
2008 4 concerts
2007 5 concerts
2006 8 concerts
2005 8 concerts
2004 4 concerts
2003 2 concerts
2000 1 concert