The HFStival is an annual Washington, D.C. / Baltimore rock festival. It was held every summer from 1990 through 2006 by radio station WHFS. It was held again in 2010 and 2011 in commemoration of the now-defunct station's legacy. A 2024 festival has been announced. At its peak, the HFStival was the largest yearly music festival on the East Coast, drawing 55,000 to 90,000 people. It was held at Robert F. Kennedy Memorial Stadium in Washington, D.C. from 1993 to 2004; at M&T Bank Stadium in Baltimore in 2005; and at Merriweather Post Pavilion in Columbia, Maryland, in 2006.