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.

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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.