Velko has 1 40 Days Later concert.

40 Days Later is a metalcore band from Sofia, Bulgaria. Formed in 2008 the band has underwent a change of style along the many members that took place in establishing the band's identity. Besides the multitude of concerts and tours the band shared stage with the likes of Vola, Kadinja, Monuments and Bullet For My Valentine. 40 Days Later has recorded many demos and an unpublished EP through the years and also released the debut album Alterations in 2017.