Organizers of the Delaware's Firefly Music Festival say former Beatle Paul McCartney will headline this year's event.
Wednesday's announcement comes a week after festival organizers announced a partial lineup led by the Kings of Leon and The Killers.
But last week's lineup did not include McCartney, despite weeks of rumors that he would be the top draw. Organizers said at the time that they were still waiting on final approval for the third headline act.
Other acts scheduled for this year's festival include Morrissey, Snoop Dogg, Foster the People and Modest Mouse.
Attendance at Firefly has skyrocketed since the first event drew about 30,000 to the woodlands around Dover Downs International Speedway in 2012. Last year, some 80,000 fans showed up.