This year, the now-AEG-owened Firefly Music Festival was shortened to three days, but event officials have confirmed that in 2020 it will once again be a four-day festival, happening Thursday, June 18 to Sunday, June 21. Marketing director Kyla Lombardo told Delaware State News, "After wrapping a successful event in 2019 we evaluated fan feedback and saw the overwhelming request for the return of Thursday," before adding, "We just couldn’t resist the opportunity for more music."

Lineup is TBA, but a loyalty presale begins this Wednesday (10/23) at noon Eastern and ends Thursday (10/24) at noon. GA, VIP, and Super VIP options will be available.

The 2019 lineup included Panic! at the Disco, Travis Scott, Post Malone, Vampire Weekend, Tyler the Creator, Courtney Barnett, Death Cab For Cutie, Brockhampton, and more.