Young Hollywood is at KCON L.A. sitting down with one of the most successful K-pop girl groups, Twice! Nayeon, Jeongyeon, Momo, Sana, Jihyo, Mina, Dahyun, Tzuyu, and Chaeyoung share how they stand out from other acts in the genre, reveal their favorite beauty item, and tell us how they "Cheer Up"! Plus they show us their favorite dance move!