The 2009 Lollapalooza Festival's 100-plus acts will be led by headliners Depeche Mode, Tool, the Killers, Jane's Addiction, Beastie Boys, and Kings of Leon, the event's promoters announced Tuesday.

Lou Reed, Ben Harper and Relentless7, Thievery Corporation, Snoop Dogg, and Rise Against are among the performers now confirmed for the event, scheduled for August 7-9 at Chicago's Grant Park.

Andrew Bird, TV on the Radio, Vampire Weekend, the Decemberists, Neko Case, STS9 (Sound Tribe Sector Nine), Animal Collective, Band of Horses, Of Montreal, Arctic Monkeys, Coheed and Cambria, Ben Folds, Fleet Foxes, Silversun Pickups, Kaiser Chiefs, Bon Iver, Crystal Castles, Santigold, and many more bands and artists are also on the bill.

The 2009 edition of Lollapalooza promises an expanded offering of dance and electronic music on a nightclub-style stage called Perry's. Bassnectar, MSTRKRFT, Simian Mobile Disco, KiD CuDi and A-Trak are among the DJs booked to spin.

Lollapalooza, produced by Austin-based C3 Presents, last year sold out all three days for the first time since the festival was reborn as a weekend-long stand-alone event in Chicago. C3 Presents is in the middle of a 10-year agreement with Chicago Park District to produce the event in the city's prime downtown park space.

"Early bird" discount tickets went on sale at the end of March, with a limited number of passes still available for $195. Regular-priced passes are $205, and a variety of V.I.P. options are also available at lollapalooza.com (http://lollapalooza.com). The prices, which include service fees, remain the same as last year.

According to Lollapalooza founder and figurehead Perry Farrell, who will headline the 2009 event with Jane's Addiction for the first time since the event debuted as a travelling road show in 1991, attendance is already looking solid in 2009 despite the challenging economic climate.

"At Lollapalooza, we're selling more tickets than ever," Farrell told Reuters. "People need an even bigger excuse to escape more than ever, and there is no better escape than going to a festival and just tripping and taking in music."

Watch Kings of Leon perform 'Knocked Up' at Lollapalooza below: