Before the cast of the show met their guests to film the episode, all the female guests met beforehand to move together. It was at this time when the three members from 'Invincible Youth' reunited: Hara, Kim Shin Young, and Narsha. 

After a very long time away from one another, the three former 'Invincible Youth' members greeted each other joyfully and reminisced about the old times that occurred approximately seven years ago in 2010. 

Check out the clip below!