IVE revealed their challenge at 'Lollapalooza.'

Starship Entertainment uploaded the first behind-the-scenes video of 'Lollapalooza Chicago' on IVE's official SNS on the 21st.

The video is approximately 12 minutes and 42 seconds long. It covers IVE's preparation process for the U.S. festival. It captures their rehearsal before the performance.

IVE conducted a rehearsal on the 3rd at the Auditorium Theatre in Chicago a day before the performance. They performed the entire setlist with the band session.

It was nearly indistinguishable from the actual stage. IVE did a sound check with 'HYAYAYA' and then performed 'Accendio' and 'Off The Record.'

The hit songs kept coming. The next song was 'I AM.' 'ELEVEN,' 'Kitsch,' and 'All Night' followed.

They didn't forget to communicate with the audience. The members spoke the phrases they had prepared in advance. Their professional audience engagement and stage manners heightened the excitement of the performance.

IVE said, "We've finished the 'Lollapalooza' rehearsal. They prepared clothes for us in Chicago, which are so pretty. We'll do our best at tomorrow's performance."

Meanwhile, IVE is currently on their first world tour 'Show What I Have.' They will head to Jakarta on the 24th. They will perform at Tokyo Dome on the 4th and 5th of next month.

<Photo=Captured from IVE's YouTube>