Elton John's Memorable Performances and Guest Appearances at Glastonbury.

Elton John paid tribute to his late friend and "inspiration," George Michael, by performing "Don't Let the Sun Go Down on Me" at Glastonbury Festival on what would have been Michael's 60th birthday. The song was famously performed as a duet by the two artists in 1991. Michael died in 2016 and is among this year's inductees into the Rock and Roll Hall of Fame. John is currently on his farewell tour, with his final show scheduled for next month in Stockholm.