Due to the explosive popularity that�Song Ji Eun's rapper, Bang Yong Guk, has been receiving with his featured part in her solo song, "Going Crazy",�TS Entertainment released his past photos to build up anticipation for his debut. As previously reported, Bang Yong Guk is a trainee under TS Entertainment who is scheduled to debut in the second half of 2011 as a member of a boy band. Netizens excitedly commented, "These pictures from his past are just as amazing", "He's such a hottie", and "I hope he debuts really fast!" Despite being a trainee, Bang Yong Guk carries more than enough experience from his days in the underground hip hop scene. �Yong Guk promoted under the name 'Jepp Blackman' as the maknae of the esteemed indie hip hop crew/label, Soul Connection.� Fans of his underground work can rest assured, as Csp clarified that Jepp will be remaining with the crew while on contract with TS. Source + Photos: Newsen, @csp86