"I think Taeil suffers the most because he’s a main vocal. Taeil never did r&b and hip hop before he joined us. He started listening to it right before he joined our group, he tries really hard to improve. He practices when we’re sleeping. When I see him practicing alone I think he looks tired. He has a lot of parts so he records everyday, that must be tough. Even when his throat hurts, he tries his best. He always records well and I thank him for that."