Photo of Marcus Mumford performing at Brooklyn's MCU Park, by Joe Papeo

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Less than 24 hours after Alabama's Hangout Music Festival announced its May 2016 lineup, Firefly Music Festival is getting in on the action, already unveiling its June 2016 roster.

Among this year's top acts are Mumford & Sons, Kings of Leon (making up for a weather-related cancelation in 2015), Florence + the Machine, Deadmau5, Ellie Goulding, Disclosure, Tame Impala, Death Cab for Cutie and M83 (the latest sign of a new album in 2016).

Also on the lineup for the Dover, Delaware, fest are A$AP Rocky, Major Lazer, The 1975, Blink-182, Two Door Cinema Club (new music soon?), CHVRCHES, The Neighbourhood, Ludacris, GROUPLOVE, Fetty Wap, Vince Staples, Porter Robinson, St. Lucia, MØ, Atlas Genius, AlunaGeorge, Elle King, Robert DeLong, Saint Motel, The Staves, Oh Wonder, Wet, Jack Garratt, Parson James, Moon Taxi, Gallant, Charlift, Boy & Bear, Vanic, COIN, Kaleo, Civil Twilight, Noah Gunderson, Son Little, POWERS, Lauv and more.

Interestingly, next year's lineup has arrived much earlier than the 2015 round, considering this year's news didn't come until February.

Set for June 16-19 at Dover International Speedway, tickets for 2016 go on sale this Friday. The full lineup can be seen here.