Produced by Robert John "Mutt" Lange (who shot to fame producing AC/DC's "Back In Black"), "4" marked Foreigner's definitive breakthrough into the mainstream

With the hit single "Waiting For A Girl Like You", the album became a bestseller. Tracks like "Urgent", "Woman In Black", "Luanne" and "Juke Box Hero" underpinned the group's versatility. Hard riffs and effective power ballads were the ticket to the rock Olympus, where Foreigner's hits will live on for all eternity.