Soccer player Park Ji Sung made an appearance to IU's very first solo concert.

On June 3, singer IU held the last Seoul Concert of her national tour, and Park Ji Sung was reported to have attended the concert.

During the concert, in the beginning of the second half, IU announced, "There is someone in the audience that will shock you. The soccer star Park Ji Sung is here right now." Then the camera showed Park Ji Sung sitting in the audience, and Park Ji Sung looked shocked. The people in the audience, after hearing this, started getting out of their seats to see him.

At this, IU said "Why aren't you looking at me, who are you looking at? If you keep looking at him I'm going to kick you out,” arousing laughter. Then she said, "I met him when we filmed for 'Running Man' together and invited him. Thank you for being so willing to come,” thanking Park Ji Sung.