AEG Presents is thrilled to announce BIG GIGANTIC live at Red Rocks Amphitheatre on Saturday, September 25th, 2021. Download the Red Rocks app before your visit. From digital ticketing with touchless entry, mobile ordering with express beverage pickup, park and venue maps, visitor tips, original Red Rocks content and more, the official Red Rocks app has everything you need for an unforgettable concert experience.