Musical idol-stars SHINee's Key, 2AM's JoKwon, VIXX's Ken, and B1A4's CNU are cast as Anatoly for the musical 'Chess' alongside Shin Sung Woo, Kim Jang Sub, Kim Buplae, Park Sun Woo, Lee Gun Myung, Hong Kyung Soo, Park Sun Hyo, An Si Ha, Kim Geum Na, and Lee Jung Hwa.

Today, the cast have started their rigorous rehearsals to hone their musical talents including singing and acting. The idols Key, JoKwon, Ken, and CNU are enthusiastically practicing for 5-6 hours a day, particularly Ken & CNU who are debuting as musical actors through this musical.

In the photos, the four are working hard and very dedicated. Meanwhile, musical 'Chess' performances will kick off from June 19 until July 19 at Sejong Grand Theater.