Billie Eilishthe KillersLizzo, and Tame Impala are set to headline the 2021 Firefly Festival, which will take place September 23rd through the 26th at the Woodlands in Dover, Delaware.

The lineup for the four-day festival also boasts Megan Thee Stallion, Roddy Ricch, Cage the Elephant, Wiz Khalifa, Machine Gun Kelly, Diplo, Portugal. the Man, Nelly, Phoebe Bridgers, Blackbear, Sylvan Esso, Glass Animals, Khruangbin, Band of Horses, Taking Back Sunday, Girl in Red, Dominic Fike, Arlo Parks, Flo Milli, Denzel Curry, Duke Dumont, Big Wild, Iann Dior, and Kim Petras. A full lineup is available on the Firefly website.

A pass presale will begin May 14th at 10 a.m. ET, with registration open now on the Firefly website. Passes will go on sale to the general public on May 17th at 10 a.m. ET. Camping and VIP packages are also available.

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