Avi Kaplan will visit Warsaw's Progresja with new material.

By the time Avi Kaplan launched his solo career with the album Sage and Stone in 2017, he had already garnered acclaim from audiences around the world, winning three Grammy Awards as a member of the vocal group Pentatonix. However, as the group's popularity grew, Avi knew he needed to return to his own artistic roots - the country and soul music of his childhood spent in California.