who sings the song last christmas

The song "Last Christmas" was originally sung by the British pop duo Wham! in 1984. The song was written by George Michael and Andrew Ridgeley. It was released as a single and became a worldwide hit, reaching number one in several countries, including the UK and Ireland. The song has since been covered by many other artists, including Ariana Grande, Taylor Swift, and The Pussycat Dolls, among others.