Feb. 23--Four-day Lollapalooza passes are scheduled to go on sale March 22, organizers announced Tuesday.
The passes, which cost $335, are slated to be available at 10 a.m. via lollapalooza.com. The lineup has not yet been announced for the festival, scheduled for July 28-31 in Grant Park.
Single-day passes are expected to sell for $120 at a later date.
Lollapalooza organizers announced in December they are expanding to four days this summer to mark the festival's 25th anniversary.
