On September 13, 1980 Elton John played a free concert for 400,000 people on stage at Central Park's Great Lawn. The concert was recorded for a television special and Gothamist has recently posted the footage.
Watch "Rocket Man", "Bennie and the Jets", his rendition of John Lennon's "Imagine", "Tiny Dancer", "Your Song", and rare footage from a news report on the concert aired on Bau Da TV here.