In November 1984, Michael joined other popular British and Irish pop stars to form Band Aid, singing on the charity song "Do They Know It's Christmas?" for relief of famine in Ethiopia. This single became the UK Christmas number one on the UK Singles Chart in December 1984. Michael's own song, "Last Christmas" by Wham!, was held at number two. "Do They Know It's Christmas?" sold 3.75 million copies in the UK. It became the biggest selling single in UK Chart history. It held this position until 1997 when it was overtaken by Elton John's "Candle in the Wind 1997", released in tribute to Princess Diana following her death Michael also attended Diana's funeral with Elton John. Michael donated the royalties from "Last Christmas" to Band Aid and subsequently sang with Elton John at Live Aid (the Band Aid charity concert) in 1985.