31-year-old musician John Mayer recently covered Mariah Carey’s holiday classic “All I Want For Christmas Is You.” The holidays aren’t over just yet, friends! We like the cover, it’s a pretty fun take on the Christmas song, have a listen! It’s pretty simple and sounds like it was live but I enjoy it! Still puts you in a holiday mood! Check out the video below of John performing Mariah’s most successful song ever!