While Lollapalooza raged in Grant Park during the end of July 2016, five of the hottest acts booked for the festival had a party with Rolling Stone, performing at our invite-only day party at the Windy City's Studio Paris. DJ Hardwell, rapper A$AP Ferg, folk-pop duo Lewis Del Mar, electro-pop artist MØ and all-star EDM group Major Lazer – who made a surprise guest appearance during MØ's set – all converged on the venue to fire up the packed house with electrifying sets. The show was presented by Harley-Davidson and vitaminwater, and fans were even allowed to climb onto Harleys for a taste of what it's like to ride.