"Last Christmas" is also one of the top 10 greatest-selling Christmas songs, but has a completely different sound than the perky "All I Want for Christmas Is You."

The Wham! single has a smooth, soft rock feel to it. And it's more than a Christmas song—it's both a love song and a slow jam. And let's not forget, many artists have covered the 1984 hit over the years. Watch the music video for "Last Christmas" below.