Have you ever wondered what models get up to backstage at fashion shows? There’s tons of waiting around in hair and makeup, giving them time to read a book, play Angry Birds or maybe take a power nap. That’s not how Cara Delevingne and Jourdan Dunn roll though. Backstage at the Topshop Unique Autumn/Winter 2013 show Cara and Jourdan performed the Harlem Shake. Yep, dressed in their runway looks they messed about with Rosie Tapner, letting their hair down and dancing like group of girlfriends on a night out. Watch their Harlem Shake video below:

The video has gone viral, and has already received over 23,000 hits on YouTube. I’ve watched the Kate Upton Dougie video, and that almost sent me to sleep, but Cara and Jourdan’s Harlem Shake is really entertaining. And, if anything, it proves Topshop Unique’s latest collection is easy to move in. No one likes to feel constricted by their clothing, and this video shows that won’t be a problem come Autumn/Winter 2013!

Now I’m just wondering whether Jourdan and Cara’s Harlem Shake is a regular occurrence. Perhaps they perform the routine together at every show they walk in…