You can take the girl out of St Louis, but not the St Louis out of the girl! Karlie Kloss, whom I refer to as my leggy little sister since we grew up so near each other in America’s great Midwest, had a big birthday this week: She (finally) turned 21! Though, she often jokes that she’s 21 going on 41 since she started working when she was 14, turning up in a Calvin Klein show on an exclusive New York fashion week appearance the same week she started high school in Webster Groves, Missouri. Despite logging in more frequent flyer miles than even I can count in the past seven years, she has maintained a sweet charm that has made her one of the most popular ladies in the business.

So, just how popular? Let’s get back to this birthday, which we celebrated with a fete I oragnized at the recently refurbished Paramount Hotel in Times Square. Her best buddy Jourdan Dunn, who turned 21 on the same day she did, showed up with Cara Delevingne and immediately hit the dance floor. Tyra Banks turned up and turnt it up, and so did Karlie’s pals Joan Smalls, Cynthia Rowley, Emma Watson, Lauren Santo Domingo, Giovanna Battagalia and Harry Brant. But the guests of honor were the rest of the Kloss Klan. Her mother and father were there, as was all three of Karlie’s sisters (Kariann, Kristine and Kimberly), as were her grandparents. And yes, Grannie Stella hit the dance floor after Karlie blew out the candles on her birthday cake. Oh yes, that birthday cake. The birthday girl spoiled us when we wheeled out two giant Karlie’s Kookies.

For more pictures, head over to Vogue’s coverage of the big night. 

Captions, from top: Karlie and her balloons; Cara, Karlie, Jourdan and me; Joan striking a pose on the dance floor; the fashion designers Prabal Gurung and Cynthia Rowley; Francisco Costa between two Klosses; Jenke and Giovanna; Lauren; Josh; Chanel Iman; Karlie and her grandparents; the entire Kloss Klan; Harry, Karlie and Lauren; Karlie’s cakes (kakes?); Harry; Chris Bollen and Patrik Ervell giving Cythia a seat; Cara, Jourdan and Karlie on the dance floor; Karlie and Jourdan having a dance off; me with the girls; Tyra and Karlie, getting their smize on.