Outkast and Eminem Will Headline Lollapalooza

PHOTO: From left, Outkast and Eminem Theo Wargo/Getty Images | Jeff Kravitz/Getty Images
From left, Outkast (André Benjamin and Antwan Patton) in New York, Oct. 7, 2006, and Eminem in Amsterdam, Netherlands, Nov. 10, 2013.

The lineup for this year's Lollapalooza has been announced.

Eminem and Outkast have been tapped as two of the headliners for the event, which will take place Aug. 1 to 3 at Chicago's Grant Park.

They will be joined by Nas, Jhene Aiko, Childish Gambino, Rich Homie Quan, Iggy Azalea, Chance The Rapper, and EDM star Skrillex. The eclectic line-up also features other rock acts, including Broken Bells -- the side project of The Shins' James Mercer and producer Dangermouse -- Chvrches, Interpol, Portugal. The Man and many others.

In all, 130 artist will take the stage, or actually one of the event's several stages, during the three-day affair, which this year is celebrating its tenth anniversary in Chicago. The festival began as a touring event in 1991.

Three-day passes for the event sold out in an hour on Tuesday, but single-day tickets go on sale today, Wednesday, at 10 a.m. CT.