Episode 10. BTOB main vocal collabrate with K-Pop Star Hunt Top 8 contestant. Changseob team with Ereene & Ling Ling performing 'Letter To You' by MC Mong & Lyn Main Vocal of BTOB rapping here. Full episode can watch on this channel https://www.youtube.com/user/TakuyaAzahito cr to Khai Rul @ youtube Notes : I know Eryn, she's one of my K-pop freinds. She's really a cheerful girl. Please dont bash her attitude too much. This show edit her part to look her bad. Actually she's really kind and cheerful girl.