It's a very special day for Karlie Kloss: the model is celebrating her 23rd birthday today!
Of course, the star gets to strut her stuff in some seriously high-fashion duds when modeling on Fashion Week runways and in ads for some of our all-time favorite clothing brands, but we've got to admit one thing about her style: we love the street style looks she wears when she's out in the city with her BFF Taylor Swift!
It takes a lot of effort to coordinate your casualwear with your besties, and don't think we missed how impossibly chic they manage to look together.
Click through the gallery to see pics that prove Karlie and Taylor are total street style stars. Then, leave your best birthday wishes for the model in the comments section below.