258K views · 805 reactions | Aspiring K-pop stars take on rigorous vocal, dance and fitness training from early morning to late at night, with some even leaving school and living in dorms. CNN's Kyung Lah embeds in the strenuous training process of K-pop hopefuls in Seoul, South Korea, in “K-Pop: A Star Is Made” on “The Whole Story with Anderson Cooper," airing Sunday at 8pm ET/PT on CNN. | CNN | Facebook