Charli XCX performed at Rehab Pool Party in Las Vegas on Sunday wearing a light blue Moschino Sequined Denim Vest ($747.50) and Moschino Sequined Denim Shorts (not available online, similar style pictured), Karl Lagerfeld Black/White Platform Sneakers (£295.00), and Karen Walker Siouxsie Sunglasses ($280.00, sold out). Get the look for less with imitation sunglasses from eBay ($6.39).