UPDATE: Firefly's presale went live on Friday (5/14) morning and opened with the fest's biggest first-day sales ever. It's already halfway to being sold out. Just a wild guess, but maybe folks are excited for the return of live music?

Billie Eilish, The Killers, Tame Impala and Lizzo are set to headline Firefly. The four-day event will take place at the Woodlands in Dover, Del., 9/23-26 in lieu of its usual June dates.

The outdoor event boasts an all-star lineup of more than 120 bands across seven stages. Artists on the bill also include Megan Thee Stallion, Cage the Elephant, Roddy Ricch, Wiz Khalifa, Machine Gun Kelly, Diplo, girl in red, Phoebe Bridgers, blackbear, Glass Animals, Cannons, Nelly, Dominic Fike, iann dior, Tate McRae, KennyHoopla, Flo Milli, Trevor Daniel, Duke Dumont and carolesdaughter, among others.

Boasting a campground, treehouse stage, silent disco, North Hub Beach Club, roller rink and first-ever Pride Parade, the all-ages festival is also offering payment plans for passes that range from $300 to $2,500.

Firefly's is the latest in a string of festival announcements; also transpiring in September are Life Is Beautiful and Governors Ball—both of which see Eilish as a headliner—as well as Bonnaroo, which Lizzo is also headlining.

Presale begins on Friday (5/4) at 10am ET. For more info, click here.