Heather has seen concerts during 18 years.

Year   Concerts Seen  
2024 1 concert
2023 3 concerts
2022 6 concerts
2021 1 concert
2019 2 concerts
2018 3 concerts
2017 13 concerts
2016 17 concerts
2015 23 concerts
2014 10 concerts
2013 6 concerts
2012 4 concerts
2011 1 concert
2010 2 concerts
2009 2 concerts
2008 1 concert
2007 1 concert
2005 1 concert