Czech alternative rock group from Brno. Founded in early 1980s, they initially performed as “Kolektiv”. Renamed to “Dunaj” (Danube) in late 1980s. Also credited as “Pustit Musíš” on their 1996 reunion album with Iva Bittová and Pavel Fajt. Disbanded for good in 1998, shortly before lead singer Jiří Kolšovský’s death.