By big rig Two rock legends recently went for a stroll in the woods to reminisce. Led Zeppelin's Robert Plant and AC/DC's Brian Johnson recently went for a walk together in Wales, discussing Led Zeppelin III. Th pair walked to Cader Idris, which is where Led Zeppelin III was recorded. The walk and talk is part of Johnson's A Life on the Road series, which you can check out on the Brian Johnson TV Youtube channel. About Big Rig