The crossword solution for the term 'Elton John Nickname' is REG, which is a shortened version of his real name, Reginald Dwight. Elton John is an English singer-songwriter who has been active since the 1960s and is one of the most successful musicians of all time. He is known for his flamboyant stage persona and outrageous costumes, as well as his popular songs such as 'Rocket Man' and 'Tiny Dancer'. His nickname, REG, is a reference to his real name, Reginald Dwight.