Hilary and Haylie Duff attended the premiere of the movie Peach Plum Pear last week.
I looked up this movie to see if any of Hilary's friends are in it, and sure enough the name Alanna Masterson came up. Alanna Masterson is the sister of Hilary's ex-boyfriend Jordan Masterson. They dated way back in 2004. Hilary has remained friends with the Mastersons. Here are some pictures of Hilary and Alanna partying at a club in October of 2009: