Joseph Okpako/WireImage Machine Gun Kelly performs during day 2 of Redfestdxb 2020 on Feb. 7, 2020 in Dubai, United Arab Emirates. Rebel Rock festival in Orlando, Fla., has announced that Machine Gun Kelly will join the inaugural lineup. Machine Gun Kelly is slated to perform on Friday, Sept. 24. The debut festival will take place at the Orlando Amphitheater and Central Florida Fairgrounds. Taking place Sept. 23 – 26, Rebel Rock is a rock and metal festival produced by Stage Left Entertainment and hosted by Sirius XM's Jose "Metal Ambassador" Mangin. The festival will take place over a span of four days, with four stages and 65 artists including Limp Bizkit, Rise Against, P.O.D., Five Finger Death Punch, The Used, Philip H. Anselmo and The Illegals performing A Vulgar Display of Pantera, Body Count feat. Ice-T, Underoath, Anti-Flag, Fit For a King, Bad Omens, Knocked Loose, Greyhaven and more.