"Telegram Sam" was the third UK number one single for the British rock group T. Rex. The song also appeared on their 1972 album The Slider. Perhaps best known for bringing the term "main man" into popular culture, it was number one for two weeks, before being knocked off the top by "Son of My Father" by Chicory Tip. "Telegram Sam" was written by Bolan about the music business accountant, Sam Alder, who sent Bolan, by telegram, news that "Get It On" had reached number one in the UK. Alder also worked with King Crimson and Roxy Music (especially Bryan Ferry).