Nasty Gal Festival 2014 Lookbook. Festival season is well on the way, and for those of you who plan on attending the fun outdoor concert to come, then you’ll need a rocking chic outfit to go with it. Nasty Gal has pretty much done the hard work for you with the release of their brand new lookbook. This season their festival styles range from a hot mix of crop tops, cut-off shorts, and plenty of denim. Check out all the laid back goodness after the drop.