Nikki has seen concerts during 14 years.

Year   Concerts Seen  
2023 5 concerts
2022 2 concerts
2019 6 concerts
2018 5 concerts
2017 3 concerts
2016 3 concerts
2015 2 concerts
2014 3 concerts
2013 4 concerts
2012 3 concerts
2011 3 concerts
2010 2 concerts
2009 1 concert
2008 1 concert