Recorded at Headley Grange in Hampshire, Island Studios in London and Sunset Sound in Los Angeles, Led Zeppelin IV is the album that put Led Zeppelin into homes around the world, acting as a successful marriage of the hard rock from their second album with the folkier meanderings of their third. It is an album that demonstrates their subtlety and restraint as much as their stadium-filling grandstanding and it confirmed their superstar rock status.