Four K-pop starlets will show off their tough sides on an upcoming variety show special.

This week, a representative for MBC's military themed reality show Real Men announced the cast for their fourth season "female special."

"FIESTAR's Cao Lu, actresses Lee Chae Young, Gong Hyun Joo, and After School's Nana will be members for the fourth series of female soldiers," said the rep, as reported by Allkpop.

Filming is scheduled to start on Feb. 15 and end Feb. 19.

The Real Men season three "female special" aired in August 2015 with Yoo Sun, Jeon Mira, Jessi, CLC's Yoojin, Park Gyuri, Han Groo, Shin So Yul, Han Chae Ah, Kim Hyun Sook, and Sayuri Fujita.

Real Men is a weekly variety show in which stars experience life in the military.