In addition to Sunmi, Red Velvet’s Seulgi, Yeri, and actress Han Chae Young, two more stars are joining JTBC4’s upcoming reality show “Secret Unnie” (also known as “Secret Sister”).

On May 4, it was revealed that Girls’ Generation’s Hyoyeon will be pairing up with MAMAMOO’s Wheein on the new show. The production staff commented that viewers will be able to see some unexpected sides of them.

JTBC4’s “Secret Sister” is a reality show where female stars get to know each other for the first time. The three pairs on the show are Yeri and Han Chae Young, Sunmi and Seulgi, and Hyoyeon and Wheein. Each pair of celebrities will share the same bed at night and open up about the worries they face while working in the entertainment industry.

“Secret Sister” will air its first episode on May 4 at 8:30 p.m. KST.

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