Tři sestry (Czech for "three sisters") is a Czech punk band. Some of their later material has fallen into a more general rock genre, and they have also dabbled in hardcore punk. They are one of the most popular rock bands in the country and have played at the Masters of Rock music festival in 2005 and 2011. The band's main songwriter, lead singer, and best-known member of the band is Lou Fanánek Hagen, whose real name is František Moravec. The other current members of the band are Veronika "Supice" Borovková (harmonica, vocals), Tomáš "Ing. Magor" Doležal (bass), Ronald Seitl (guitar), Zdeněk Petr (guitar), Rostislav "Rosťa" Cerman (guitar), Petr "Bubenec, Franta Vrána" Lukeš (drums), and Martin "Jaroušek" Roušar (saxophone, clarinet).