"You get a little bit of everything; I love seeing how everyone interprets festival fashion-it's like a fashion show." Her main festival must-have is classic denim pieces, which Carlson says you can mix-and-match in an outfit. "I love a baggy low-rise jean, I feel like I can dance around in them," says Carlson, adding that she has an affinity for Guess denim. Last night, the singer and...