Bella Hadid is literally all balls right now. The 24-year-old supermodel's latest promo for Calvin Klein encompassed both the fashion giant's jeans and its underwear, with Bella dedicating her Friday Instagram update to showing off the edgy shoot. Bella, who was seen in a giant ball pit and writhing around in it, posted three photos for her 36.4 million followers – one for the jeans and two for the undies. The snaps also showed off the new twin shoulder tattoos Bella's gotten herself. Check it out below.