Nitefall on the River has announced some of the acts performing this summer at the Simon Estes Riverfront Amphitheater in downtown Des Moines. Performers include Blue October (May 24), Hairball (May 29), The Nadas (June 6), NEEDTOBREATHE (June 10) and Fitz & The Tantrums (July 29). Tickets go on sale Friday, March 21, at 10 a.m. at ticketfly.com. More acts scheduled for the 2014 season will be announced soon.