On June 15th, rookie band BOB4 made their official debut with the release of their first single “Mystery Girl” which features former Dal Shabet’s Viki.
To further showcase their musical talents, BOB4 performed a band version cover of HyunA and Hyunseung’s “Trouble Maker” as well as the Girls’ Generation TaeTiSeo’s smash-hit “Twinkle”.
Check out their cover below!