Rocklahoma (also known as Rock Fever Presents Rocklahoma or Rock Fever) is an annual American three-day rock festival held in Pryor, Oklahoma. The festival features 4 official stages, as well as many unofficial campground parties and performing acts and onsite vendors. It is currently billed as one of the many festivals that make up AEG Entertainment's World's Loudest Month concert series. There were an estimated 100,000 people (about 30,000 per day) at the first annual Rocklahoma held in 2007. The Third Annual Rocklahoma had over seventy bands on four stages, including favorites from previous Rocklahoma festivals, Beautiful Creatures, LA Guns featuring Tracii Guns, Bang Tango, Lillian Axe, Gypsy Pistoleros and Faster Pussycat. Included on the side stages are bands from all over Europe. Coffee table books for Rocklahoma 2007, 2008, 2009 and 2010 have been published and are available on the web. Rocklahoma saw 2020 get deferred to 2021, when it resumed. 2017 Thursday, May 25 (Campground Party): Another Lost Year, Nicnos, Locust Grove, Final Drive, Midnight Mob, Hoodslide, Stolen Rhodes, BC & The Big Rig, Reliance Code, Screaming Red Mutiny Friday, May 26: Def Leppard, Three Days Grace, Skillett, Pierce the Veil, the Pretty Reckless, In Flames, Slaughter, Rival Sons, Fozzy, Badflower, Goodbye June, Aeges, Retrospect All Stars, Lynam, Aska, Electro_Nomicon, Ratchet Dolls, Death Grip, T.R.O.Y., Arson City, Keychain, Sun And Flesh, Thousand Years Wide, Save The Hero, the Normandys, Difuser Saturday, May 27: Stone Sour, The Cult, Zakk Sabbath, Suicidal Tendencies, Diamond Head, Fuel, Starset, Red Sun Rising, Dinosaur Pile-Up, DED, Kore Rozzik, Dead Metal Society, Wildstreet, Diamond Lane, Black Tora, Five Star Hooker, Moxy & The Influence, Adakain, NonHuman Era, The Mendenhall Experiment, Paralandra, Wild Fire, The Adarna, The Revolutioners, etc Sunday, May 28: The Offspring, Seether, Jackyl, Ratt, Buckcherry, Taking Back Sunday, Nothing More, Black Stone Cherry, Norma Jean, Wage War, Royal Republic, One Less Reason, London’s Dungeon, Niterain, Nova Rex, 3D In Your Face, The Tip, Desire the Fire, Wild Planes, Coda Cutlass, As Above So Below, The Chimpz, Sweatin Bullets, Weston Horn & The Hush, Skytown, The Fairweather 2016 Thursday, May 26 Arson City, Even the Dogs, Drek, Nicnos, Emperors and Elephants, Well Hung Heart, Framing the Red, Hoodslide, BC and The Big Rig, Roots of Thought, Grind 2015 Due to severe weather in the area, Rocklahoma officials were forced to evacuate the grounds and were forced to cancel the remaining artists for Saturday