Former JYP trainees Natty and Park Ji Won reunite with TWICE on 'Idol School'

On this week's 'Idol School', former JYP Entertainment trainees Natty and Park Ji Won had a reunion with members of TWICE. 

Natty, Park Ji Won, and their classmates, who're preparing a performance of TWICE's ''OOH-AHH'', received a chance to visit JYP Entertainment. When the students arrived at the practice room, they were greeted by special visitors Momo and Mina.

Natty and Park Ji Won screamed in joy at the sight of their former labelmates and exchanged hugs with the TWICE members. 

Watch their joyful reunion in the clip above.