(St. Charles, IA) -- The lineup for this year's Hinterland music festival is released. This year's festival runs from August 4th to the 7th at Avenue of the Saints Amphitheater in St. Charles. There will be nearly 30 musical acts including four headliners, Billy Strings, Glass Animals, Nathaniel Rateliff and the Night Sweats, and Phoebe Bridgers. Tickets go on sale Friday at 10:00 a.m. The full list of artists performing at the festival is available at www.hinterlandiowa.com.