Firefly made a big splash onto the scene in 2012 with ambitions to be the biggest music festival on the East Coastproviding people with a festing destination on par with Coachella, produced by the Chicago-based company Red Frog Events, which also puts together Warrior Dash and Chicago Beer Classic. Firefly aims to entertain music fans of all types and genres, although it definitely skews toward young and trendy; youre not necessarily likely to see multi-generational crowds here. When organizers got together to imagine what a quintessential summer night of outdoor music would entail, fireflies (a. k. More Info below.