Matthew Sullivan has seen concerts during 12 years.

Year   Concerts Seen  
2024 3 concerts
2023 32 concerts
2022 30 concerts
2021 9 concerts
2020 1 concert
2019 10 concerts
2018 5 concerts
2017 2 concerts
2016 3 concerts
2015 1 concert
2010 1 concert
2008 1 concert