how many versions of last christmas are there

There are many versions of the song "Last Christmas" by George Michael. The original version was released as a single in 1984, and has been covered by numerous artists, including Wham!, Ariana Grande, Taylor Swift, and more. There are also various remixes, acoustic versions, and different language versions of the song. The song has also been used in popular culture, including in movies such as "Love Actually" and "The Holiday."