The crossword solutions for the term 'Sir __ John' is Elton. This refers to Sir Elton John, an English singer, songwriter, pianist, and composer. He has sold over 300 million records, making him one of the world's best-selling music artists. He has also composed music for films and musicals, and has received five Grammy Awards, five Brit Awards, an Academy Award, a Golden Globe Award, and the Tony Award.