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Mumford and Sons, Billy Joel, and Kendrick Lamar will be headlining Bonnaroo this year.

Organizers let fans divulge this year's lineup Tuesday evening via a special phone number. Potential festival-goers were invited to call in, get the name of an artist in the lineup, and then share that name on social media. 

The full roster was eventually posted to Bonnaroo.com at the end of their annual Bonnaroo Lineup Announcement Megathon.  

Other acts slated to take one of the many stages at the Manchester, Tennessee event include Deadmau5, Florence + the Machine, Robert Plant and the Sensational Space Shifters, My Morning Jacket, Alabama Shakes, and many more. 

Bonnaroo 2015 will take place June 11th through the 14th, with tickets set to go on sale this Saturday at noon Eastern. 

Check out the 2015 Bonnaroo lineup below! 

Photo: Getty Images