Brian pern a life in rock' is a british comedy documentary following ageing rock star brian pern, former front man of the legendary 1970s progressive rock group thotch.the three series the life of rock, a life in rock and 45 years of prog and roll follow brian as he develops as an artist through the ages'. '.strtoupper('b')rian claims to have invented world music, come up with the idea of live aid and to be the first musician to use plasticine in videos '. '.strtoupper('a')n affectionate parody of peter gabriel, brian pern features a whole host of recognisable faces from rock and pop.