The roster for the Largest Music Festival in Motorcycling at the Sturgis Buffalo Chip continues to grow as five more of the hottest rock bands in the world are slated to perform. Check out the gallery above to see who's just been added to the lineup. The concert series during the Largest Music Festival in Motorcycling starts on Friday, July 31 and runs through Saturday, Aug. 8, 2015. So far the Buffalo Chip has announced Five Finger Death Punch, Brantley Gilbert, Godsmack, Lynyrd Skynyrd, John Fogerty, Styx, Social Distortion, Shinedown and Def Leppard. The campground will open for camping on July 3, 2015 with live music starting on showcase stages beginning July 25.