“Sefa Vlaarkamp, artist name Sefa, is without a doubt the most out-spoken artist of 2018. As
soon as the festival season of 2018 kicked-off, Sefa did as well. Wherever his name appeared
on the line-up, stages were completely packed. From opening slots to closing the massive
BLACK stage at Defqon.1 Festival, the areas weren’t big enough to gather all the fans.