Ethel Cain, Muna, Lola Young, Zara Larsson, Father John Misty, and more also set to perform at Maryland's Merriweather Post Pavilion this September Hayley Williams , Mitski , and Brandi Carlile will serve as headliners at this year’s All Things Go D.C., the three-day music festival returning to the DMV region in September. Ethel Cain, Muna, Lola Young, Zara Larsson, Father John Misty, Magdalena Bay, Slayyyter, the Beths, and more artists will also perform during the Sept. 25 to 27 festival at Columbia, Maryland’s iconic Merriweather Post Pavilion. Further down the lineup, Rico Nasty, Rebecca Black, Del Water Gap, She & Him, Suki Waterhouse, Tinashe, Wolf Alice, Violet Grohl, Jensen McRae, and comedian Robby Hoffman are also set to perform. Ticket information is available on the fest’s website . All Things Go D.C.…