OutKast, Jack Johnson, Weezer, Foo Fighters, Arctic Monkeys, Pretty Lights, Third Eye Blind, Portugal. The Man, Band of Horses, Ziggy Marley, White Denim, Iron & Wine, Sleigh Bells and more will perform at the Firefly Music Festival, which is set to take place in Dover, DE June 19-22. Tickets to the festival are now on sale.

The OutKast announcement makes Firelfy the third festival—after Coachella and Governor’s Ball—to confirm the popular hip-hop duo. As previously reported, OutKast have said that they will be reuniting for 40 festival dates in 2014.

Firefly Music Festival initial lineup

A Great Big World
A-Trak
Aer
Airborne Toxic Event
American Authors
Amos Lee
Andrew Belle
Arctic Monkeys
Asaf Avidan
Bad Things
Band Of Horses
Basic Vacation
Bleachers
Breach The Summit
Bronze Radio Return
Cage The Elephant
Cash Cash
Chance The Rapper
Cherub
Childish Gambino
Christian Porter
City And Colour
Courrier
Courtney Barnett
Cruiser
Dan Croll
Foo Fighters
G-Eazy
Gemini Club
Geographer
Girl Talk
Goldroom
Gregory Alan Isakov
Griswolds
Grouplove
Haerts
Hey Rosetta!
High Highs
Holychild
Hunter Hunted
Imagine Dragons
Iron & Wine
Jack Johnson
Jake Bugg
John & Jacob
Johnnyswim
Kaiser Chiefs
Kodaline
Kongos
Little Comets
Little Daylight
Local Natives
Lucius
Magic Man
Martin Garrix
Mean Lady
Misterwives
Ms Mr
New Politics
New Sweden
Nonono
Outkast
Phantogram
Phosphorescent
Pigpen Theatre Co
Portugal. The Man
Pretty Lights
Rac
Royal Teeth
Saints Of Valory
Salva
San Fermin
Shakey Graves
Sir Sly
Sky Ferreira
Sleeper Agent
Sleigh Bells
Smallpools
Son Lux
Step Rockets
Stop Light Observations
Tegan And Sara
The Ceremonies
The Colourist
The Lumineers
The Mowglis
The Weeks
The White Panda
The Wild Feathers
Third Eye Blind
Tune Yards
Twenty One Pilots
Typhoon
Unlikely Candidates
Vance Joy
Vic Mensa
Walk Off The Earth
Washed Out
Weezer
White Denim
Wild Child
Wild Cub
X Ambassadors
Young The Giant
Ziggy Marley