Matttvieira has seen concerts during 17 years.

Year   Concerts Seen  
2024 39 concerts
2023 97 concerts
2022 76 concerts
2021 6 concerts
2020 16 concerts
2019 23 concerts
2018 49 concerts
2017 39 concerts
2016 21 concerts
2015 18 concerts
2014 11 concerts
2013 5 concerts
2012 5 concerts
2011 5 concerts
2010 4 concerts
2009 4 concerts
2008 4 concerts