LL Cool J, The National, Vampire Weekend, Chvrches, and Over 180 Bands Headed to the Grant Park on August 2-5 Festival organizers within the United States Lollapalooza headquarters have just announced the 2018 lineup. This year they have Bruno Mars, Jack White, and The Weeknd headlining the four-day event in Chicago, Illinois. Lollapalooza is an international music festival mecca with events taking place in South American and Europe. They have been holding an annual festival in Chicago since 2005. This year the Chicago-based festival is hosting a wide selection of acts on multiple stages. Performing acts include: St. Vincent, ODESZA,