Band The Rose member Kim Woo Sung participated in 'Psychopath Diary' OST.

Kim Woo Sung will join the first OST of tvN's Wednesday-Thursday drama "Psychopath Diary," agency J& STAR COMPANY said on Dec. 11. 

The OST of "Psychopath Diary" involving Kim Woo Sung, "Wanna be Bad," is a rock genre that will keep the drama's suspense alive, a song that represents the position of protagonist Yuk Dong-sik.

Duroz, who includes Kim Woo Sung, who became the first main character of the "Psychopath Diary" OST, recently spread the appeal of K-pop bands around the world through a tour of 10 European cities. 

"Wanna Be Bad," which will add strength to the drama with Kim Woo Sung's charm, will be released on various music sites at noon on Wednesday.

"Psychopath Diary" is a drama that tells the story of a victim who accidentally loses his memory in an accident while fleeing the scene of a murder he witnessed, mistaking himself as a psychopathic serial killer, and airs at 9:30 p.m. every Wednesday and Thursday nights.

Currently, The Rose held a Southeast Asian tour on Dec. 15 in Manila, the Philippines and other countries, and is preparing for "We Rose You," a local encore performance, in Seoul on Dec. 27 and in Busan on Dec. 29.