You've already seen Cara Delevingne's gorgeous Topshop campaign , but before she glammed up for the cameras, she was just a girl having fun on set — with a bunny rabbit, a lightsaber, and a guitar. Showing off her acrobatics — um, she can do the worm! — dancing, playing with balloons, and generally being hilarious, Cara can make us laugh as just easily as she can make us swoon. And, really, isn't that why we love her? Check out Topshop's behind-the-scenes video to see a very candid look at Cara.