The HFStival was an annual Washington, D.C. / Baltimore, Maryland rock festival. Held every summer from 1990 through 2006 by radio station WHFS, and held again in 2010 and 2011 in commemoration of the now-defunct station's legacy, the HFStival was at its peak the largest yearly music festival on the East Coast. 55,000 to 90,000 people attended the annual event, which had traditionally been held at RFK Stadium until the station moved to Baltimore in 2005. That May, the new WHFS at 105.7 held its first HFStival at M&T Bank Stadium. Though not originally called HFStival, two earlier concerts held on the Fourth of July were the foundation for the first festival and are considered part of HFStival history. History The HFStival began as the WHFS Fourth of July Festival, an all-day concert followed by a fireworks display, which was held twice at Lake Fairfax Park in Reston, Virginia 1990 and 1991. The first proper HFStival was held in Upper Marlboro, Maryland in 1992, and the following year's event, on July 4, 1993, the event was moved to RFK Stadium for the first time, where it would continue annually return for the next six years. In 1993, when the first RFK lineup was revealed, some controversy arose among the station's listeners over the inclusion of the Stereo MCs; the previous events had only included mainstays of rock and alternative music and the MCs, a hip hop group, seemed out of place. Once the concert went on, however, the audience's enthusiasm paved the way for WHFS to include more artists from outside the station's normal playlist on the HFStival's stages – which would, in future years, include more hip hop acts, electronica artists, and such disparate musicians as crooner Tony Bennett and performance artists the Blue Man Group. HFStival 1999, headlined by Red Hot Chili Peppers, left RFK Stadium for the larger M & T Bank Stadium in Baltimore, Maryland; the following year's festival was held at FedExField in Landover, Maryland, and, with a sold-out crowd of 90,000, it was WHFS's most-attended concert ever. RFK was still the festival's official home, however – not only would the festival return in 2001, but in September, 1999, the first "HFStival Fall Edition" was held there. 2000 is generally considered the HFStival's peak year – that year's concert, headlined by Rage Against the Machine and Stone Temple Pilots with a half-hour documentary produced by