Czech hard rock group from Teplice. Fourmed in 1984 as Black Out, later renamed to Hlahol.
Active years 1984-1987, comeback 1988-1989, second comeback 1991-1999, reunion 2008.

Recent line-up
Milan Korda - vocals, bass guitar
Lubor Illeš - guitar
Milan Illeš - guitar
Daniel Haffstein - drums

Ex-members:
Miloš „Mumli“ Levek - drums
Tomáš „James“ Jarolím - bass guitar
Milan Špalek - bass guitar
Martin Křivka - guitar
Josef Vojtek - guitar
Ota Váňa - guitar
Karel Steiniger - guitar
Pavel Hradil - drums
Petr Záhorčák - guitar
Honza Brand - drums
Dan Trojánek - bass guitar
Radek Šikl - drums
Martin Koláčný - vocals
Libor Matejčík - guitar
Milan „Fugas“ Krbec - drums
Roman Váňa - vocals