One of the lyrics to the Twenty One Pilots’ hit “Heathens” goes as follows: “Please don’t make any sudden moves.”

At the Pilots’ Saturday night headlining performance at Lollapalooza, the crowd was packed with so many people that it was hard to make any moves at all. But that didn’t stop a sea of committed fans.

The duo, composed of lead singer/multi-instrumentalist Tyler Joseph and drummer Josh Dun, played to the massive crowd several times throughout the set. The two entered the audience multiple times, with fans raising them up on platforms. At one point during a performance of “Car Radio,” Joseph climbed to the top of a large scaffolding.

Perhaps in a preemptive apology to the crew for their stunts, the musicians thanked Lollapalooza’s security teams several times, even featuring them on stage to dance.

In addition to their showmanship, the group’s strength lies in the ease in which one can sing along to their songs. Throughout the evening, the audience acted as a de facto band member, carrying the lyrics to songs like “Stressed Out” and “We Don’t Believe What’s on TV.”

The crowd’s energy never faltered, adhering to Joseph’s bizarre request to have audience members hoist each other up on their shoulders on command.