Bonnaroo has begun unveiling its 2015 lineup.

Fans were able to call 1-844-ROO-2015 between the hours of 6-9 p.m. on Tuesday to learn the name of one act performing.

Mumford & Sons, Billy Joel, Kendrick Lamar and Deadmau5 will headline the fest, which is set for June 11-14 in Manchester, Tenn.

Tickets will go on sale Jan. 17 at noon EST.

(Updated: 8:55 p.m. EST)

Against Me!
Alabama Shakes
Atmosphere
AWOLNATION
Bahamas
Bassnectar
Bela Fleck & Abigail Washburn
Belle and Sebastian
Ben Folds
Ben Harper & the Innocent Criminals
Benjamin Booker
Billy Joel (headliner)
Bleachers
Brandi Carlile
Caribou
Childish Gambino
Courtney Barnett
Dawes
Deadmau5 (headliner)
DeJ Loaf
Earth Wind & Fire
Florence + the Machine
Flume
Flying Lotus
Freddie Gibbs & Madlib
Gary Clark Jr.
G-Eazy
Glass Animals
Gramatik
Guster
Houndmouth
Hozier
Jamie xx
Jerry Douglas Presents Earls Of Leicester
Jon Cleary & the Absolute Monster Gentlemen
Jungle
Kendrick Lamar (headliner)
Mac DeMarco
Moon Taxi
Mumford and Sons (headliner)
My Morning Jacket
ODESZA
Pallbearer
Phox
Priory
Punch Brothers
Rhiannon Giddens
Robert Plant & the Sensational Space Shifters
Rudimental
Run the Jewels
Rustie
Ryn Weaver
SBTRKT
Shabazz Palaces
Shakey Graves
Slayer
SOJA
Spoon
Strand Of Oaks
STS9
Sturgill Simpson
Sylvan Esso
Tears For Fears
The Very Best
The War on Drugs
Tove Lo
Trampled By Turtles
Twenty One Pilots
Tycho
Unknown Mortal Orchestra
Woods