Lolla will take place from Thursday, July 30 to Sunday, Aug. 2 this year in Grant Park.
Organizers said the lineup of performers will arrive "very soon."
In 2025, large crowds took in more than 170 artists.
Olivia Rodrigo set records with the massive crowd of people that showed up to see her perform.
Chicago saw record-breaking hotel stays last summer, thanks in part to Lollapalooza.
Choose Chicago reports people booked 3.56 million rooms from June through August, generating $949 million in revenue.