Britney Spears and Iggy Azalea hit the streets of LA on Thursday to film the Music Video for "Pretty Girls," their new collaboration. The girls drove around in a bright orange jeep and a red convertible while donning denim vests, leopard crop tops, and crimped hair. Rumors of a collaboration between Brit and Iggy have been swirling for months, and the pop princess herself said she was "slowly but surely" working on a new album in a recent interview with Billboard. **w that Britney's back from an epic Hawaiian vacation with her family, it looks like it's all systems are go. Keep reading to see animated pictures from the shoot.