Karlie Kloss
Only Karlie Kloss could wear what looks like lark's vomit and have it work.
Liya Kibede
I understand the security blanket of a bra -- lord knows we've been preaching their mercies for almost a decade now -- but in this situation I feel like you either brave it without, or wear the dress backwards. There's a reason Dirty Dancing had Baby ditch her Playtex for the actual mambo scene.
Coco Rocha
The grooviest King Kong that ever was.
Christy Turlington
This is so depressing. Somebody needs to call Christy Turlington and remind her that she's CHRISTY TURLINGTON.
Iman
Iman is innately groovy, so she can do pretty much anything... but look: If there's anyone who understands the impact of a properly tailored, slim-fitting suit, it's her husband David Bowie. USE THE BOWIE.
Catherine Malandrino
WHY ARE YOU DRESSED AS A PAIR OF TIGHTS.
Natalie Massenet
Natalie here is the founder of Net-A-Porter, a site that sells incredibly expensive designer clothes. She is not hurting for options. She IS hurting for a Get-A-Grip Friend to tell her, "Listen, we all thought that scene in Mary Poppins looked fun, but you can't walk around dressed like you expect to jump through the sidewalk and have tea with Dick Van Dyke and then ride a carousel horse."