Hilary Duff was at the Herve Leger preview party looking pretty gorgeous. Hilary is all grown up now and the singer shows it in these pictures by doing this light green dress justice. I kind of lose it a little bit when the old men come in and put their hands all over women, lay all over them, and try to pull a fast one. Thankfully, there is not a whole lot of that in these photos, and Hilary does not seem to mind. But if she needed me, I would be there to defend her honor. Hilary Duff is a total babe and looks quite hot!

Hit the jump to see more of the gorgeous Hilary Duff!