Lollapalooza, the Chicago summer music festival, is offering festivalgoers some exciting features on its official app. Courtesy of GroupMe, the Lollapalooza app now features group texting. The group texting option will allow festival visitors to easily communicate with their friends to better organize their Lollapalooza experience. The app also includes Lolla radio stations, a lineup schedule and band information. The app is available for iPhone and Android. [Mashable]