Big Iron was written and recorded by Marty Robbins and released in 1959 on his album Gunfighter Ballads and Trail Songs, telling the story of an Arizona Ranger facing the outlaw Texas Red. The song found a second life decades later when it appeared on the radio in the video game Fallout: New Vegas, introducing its western storytelling to a new generation of players. Since then it has become a favourite shorthand for cowboy showdowns online, reused in memes, gameplay clips and edits that borrow its old west atmosphere.