Miley Cyrus might be having a blue Christmas without Cody Simpson . Over the weekend, Cyrus tweeted about a "sad Christmas song" she wrote a few years back. "Was feeling like shit cause I couldn’t be with the one I loved," she wrote of the track, "My Sad Christmas," which she first posted to Soundcloud four years ago. "Even with a house full of family and friends I still felt alone," she wrote, adding that the sentiment of the song "still feels relevant" now.