What's a music festival without some playful beauty? The grounds of Lollapalooza were teaming with great style and even more adventurous beauty moments. Though glitter has become the de facto accessory, seeing festival-goers play with eyeshadow and mascara was a real treat. Hey, if eyes are the windows to the soul, you might as well gussy them up for the occasion. Check out our favorite moments in our exclusive gallery, presented by Rimmel London, below.