They're joining previously announced headliners Hayley Williams and Mitski. MUNA performs at the All Things Go Music Festival held at Forest Hills Stadium on Sept. 28, 2024, in New York. Nina Westervelt/Variety Trending on Billboard All Things Go festival has delivered another star-studded lineup for its 2026 edition in D.C. Brandi Carlile, MUNA, Lola Young, Zara Larsson, Ethel Cain, Slayyyter and more will join the three-day event at Merriweather Post Pavilion in Columbia, Md. Explore See latest videos, charts and news For the 12th edition of the D.C. festival, the newly announced artists will join headliners Hayley Williams and Mitski from Sept. 25 to 27. Sienna Spiro, The Beaches, Rainbow Kitten Surprise, Rico Nasty, Del Water Gap, She & Him, Tinashe, Wolf Alice and more will join the lineup for the event that has sold out for five consecutive years in D.C. Williams and Carlile will make their All Things Go debuts this year, while Lola Young returns as a favorite after her 2024 and 2025 billings.…