20th Century Boy is a triple-album compilation issued in Australia by EMI in 1981. Released under catalogue number MARC 1, the collection presents a broad retrospective of Marc Bolan's recording career, beginning with solo recordings from 1965–67, continuing through the Tyrannosaurus Rex years, the classic T. Rex era, and concluding with recordings from the final years of T. Rex. The compilation combines commercially released material, rare recordings, interview segments and