DOVER, Del. (AP) — Organizers of the Firefly Music Festival in Delaware have announced this year’s lineup but are still working to finalize a third headliner.

The lineup released Tuesday is led by Kings of Leon and the Killers. Other acts include Morrissey, Snoop Dogg, Foster the People and Modest Mouse.

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One name not on the list is former Beatle Paul McCartney, who had been rumored for weeks to be this year’s top headliner.

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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.

Chicago-based Red Frog Events, which founded the Firefly festival, teamed up last year with Los Angeles-based Goldenvoice, the group behind the Coachella music festival in California, to promote and produce Firefly.

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