The new reality series 'Secret Unnie', airing on JTBC4 as well as on 'V Live', pairs up a sunbae celebrity such as actresses and/or singers with a hoobae celebrity, so that they can spend time together and hoobaes can receive valuable advice about the entertainment industry from their sunbaes.�

Back on a special, introductory episode of 'Secret Unnie', Red Velvet's Yeri spent time with actress Han Chae Young. The show officially premieres this May 4 at 8:30 PM KST, and in addition to the Yeri x Han Chae Young pair, Red Velvet's Seulgi will be meeting up with Sunmi.�

Hyoyeon and Whee In reportedly met up recently to begin their portions on the show, so fans will have to wait a few weeks to catch them.