07/12/2010 05:12 am ET Updated May 25, 2011

Lollapalooza Gets Bigger: 20,000 More Fans Expected This Year

Chicago's biggest concert event is getting even bigger.

Organizers of Lollapalooza, the three-day rock music fest in Grant Park, are expanding the concert venue's footprint this year to allow 60,000 more people to attend the three-day event.

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