Source: Facebook user Aaron Carter [1]

Aaron Carter got into the Christmas spirit by watching an old episode of Lizzie McGuire — and then he shared a picture of himself watching that clip on Facebook. He captioned the image, "Merry Christmas Lizzie McGuire," and although he seemed to be wishing the Lizzie McGuire character a happy holiday, it may have been more of a message for Hilary Duff [2]. Throughout the year, Aaron has made several references to Hilary, first tweeting about his love for her [3] back in March, saying, "I'll spend the rest of my life trying to better myself to get back to her." In September, Aaron admitted he should stop talking about her [4], saying it was time to "shut up" about it, and in October, Hilary addressed Aaron's comments [5], calling it "so uncomfortable" and saying, "He was very sweet . . . when I was 13."

For those who don't remember, the pair dated when they were younger, linking up after Aaron dated Lindsay Lohan [6] in 2002 and early 2003. In the clip he appeared to be watching recently, he and Hilary kissed on screen. Watch for yourself below.