Say it with us now: Awww. At his concert in New York City last week, Billy Joel serenaded ex-wife Christie Brinkley with "Uptown Girl," the song he wrote for her in 1983, even making sure the cameraman turned his lens on Brinkley in the audience. The Stir notes that Joel and Brinkley have always seemed to have a good relationship since divorcing in 1994, and that Brinkley posted a picture of herself at the concert on Instagram along with the caption, "He's still got it!" (Click to read about Brinkley's classy move after Joel's mom died.)