Gulf Shores, Ala., is gearing up for another Hangout Music Fest this spring. The initial lineup was revealed early Wednesday morning, with Tom Petty and the Heartbreakers, Kings of Leon and a third headliner (to be announced shortly) leading the pack. The three-day event will, of course, take place once again in Gulf Shores on May 17-19.

The lineup also boasts names like Kendrick Lamar, Ellie Goulding, Passion Pit, Bassnectar, The Roots, Best Coast, Grouplove, Porter Robinson, Delta Rae and others. See the full—albeit incomplete—lineup below.

Tom Petty and the Heartbreakers
Kings of Leon
Kendrick Lamar
The Shins
Public Enemy
The Breeders
The Roots
Ellie Goulding
Dirty Projectors
The Black Crowes
Trey Anastasio Band
Steve Aoki
Passion Pit
Bloc Party
Best Coast
Jim James Band
Porter Robinson
Slightly Stoopid
Toots and the Maytals
Gov’t Mule
Jason Isbell & 400 Unit
Twin Sister
Ryan Bingham
The Sheepdogs
Shovels and Rope
Moon Taxi
The Revivalists
Zion I
Lance Herbstrong
Anders Osborne
Twenty Ι One Ι Pilots
Delta Rae
Nikki Bluhm and the Gramblers
The Bright Light Social Hour
The Werks
The Ton Tons
Brassft Punk
Kingston Springs
The Mowgli’s
Chancellor Warhol
Luella and the Sun
The Weeks
Space Capone
Wild Cub
Colin Lake