Block B - BASTARZ Block B - BASTARZ is a k-pop artist. Apple Music Last.fm Seoul, Korea, Republic of (2015 – present) BASTARZ) is a sub-unit group of Block B, which debuted on April 14, 2015 with their first mini album, "품행제로". The sub-unit is a trio of U-Kwon, P.O and B-Bomb. .
