In the heartfelt piece she says that her "favorite" designer is "like a sister" and goes on to gush that she is lucky to have:
"Someone who really sees you. Who is as honest with you as they are loving. Who shares a similar world view, who has similar values. Who is a bit of a life raft when you live in a country that you lovingly adopt, but is not your own. Who also happens to be hilarious and a bit naughty and is constantly trying to get the balance of everything right, just like you are."
If that high praises wasn't enough, the Oscar winner also included a video from a celebration she threw for her BFF this summer in the Hamptons. While there were many famous faces at the backyard fete—including Sarah Jessica Parker, Rachel Zoe, Paul McCartney and Cameron Diaz—the real highlight in the minute-long clip is at the end: when the World's Most Beautiful Woman lays one on Stella.
Think Beyoncé and Cameron are jealous?