After recently revealing that Vampire Weekend and The Lumineers would be performing at this year’s edition of the Firefly Music Festival, event producers have now announced the full lineup.

Red Hot Chili Peppers , Foster the People , Yeah Yeah Yeahs , Passion Pit , MGMT , Alabama Shakes , Grizzly Bear , Edward Sharpe and the Magnetic Zeros and Imagine Dragons have all been added to the roster for the musical extravaganza, which runs June 21-23 in Dover, Delaware.

Tickets for the event go on sale on Thursday at 12 p.m. ET.  Visit FireflyFestival.com for more information.

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