Shinhwa's Eric finally got to see his new girl group STELLAR make their stage debut through today's episode of KBS's 'Music Bank'. Their title track "Rocket Girl" was composed by Kim Do Hyun (of Hyori's "10 Minutes" fame). Described to be a song with an electro-house style, "Rocket Girl" will not only show off the members' individual charms, but Eric's as well, since he included some raps in the song. Check out their debut below! Source: Naver Music