On November 24, 'Exo Planet 4 � The E?yXiOn' took place at Gocheok Sky Dome in Seoul. It has been revealed that Kai practiced til 4 am on the day of the show for his solo stage. However, he ended up making a minor mistake during his performance, which many fans didn't even notice. But at the thought of not presenting a perfect stage for his fans, the idol star ended up breaking down in tears during a talk session.�

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Seeing Kai in tears, fellow EXO members commented, "He wanted to show a perfect performance but it seems he was nervous. It's okay."

Fans also encouraged Kai, chanting, "It's okay."