Psí vojáci was a Czech rock band from Prague, fronted by singer, pianist and songwriter Filip Topol, son of playwright Josef Topol and brother of writer Jáchym Topol. Topol formed the band in 1979 with drummer David Skála and bassist Jan Hazuka, his elementary school classmates. It disbanded in August 2011, then reformed in October 2012 with the original line-up and finally ceased to exist in June 2013 with Topol's death. The band was named after the Dog Soldiers, a Cheyenne military society that appeared in Thomas Berger’s novel Little Big Man. They were a part of the Prague underground countercultural movement, and were influenced by punk rock as well as avant-garde and classical music including composers of the second half of the 18th century. Topol also performed solo on the piano and played songs from his solo albums, often with confessional lyrics.