George Michael & Elton John sang "Don't Let The Sun Go Down on Me" at the Live Aid concert in 1985. Recorded live at a concert at Wembley Arena, London on 25 March 1991 when Elton John was a surprise guest of George Michael, the duet became a massive hit on both sides of the Atlantic. It was released later that year and reached number one on the UK singles chart for two weeks in December 1991 and a single week on the Billboard Hot 100 in February 1992. The duet also spent two weeks at number one on the Adult Contemporary chart.