Twice (Hangul: 트와이스; Japanese: トゥワイス) is a South Korean girl group formed by JYP Entertainment through the 2015 reality show Sixteen. The group is composed of nine members: Nayeon, Jeongyeon, Momo, Sana, Jihyo, Mina, Dahyun, Chaeyoung, and Tzuyu. The group debuted on October 20, 2015, with the extended play (EP) The Story Begins.[1]
Twice rose to fame in 2016 with their single "Cheer Up": the song charted at number 1 on the Gaon Digital Chart and became the best-performing single of the year. It also won "Song of the Year" at two major music awards shows-Melon Music Awards and Mnet Asian Music Awards.[2][3][4] Their subsequent single "TT", from their third EP Twicecoaster: Lane 1, claimed the top spot for four consecutive weeks. The EP was the highest selling K-pop girl group album of 2016, which sold 350,852 copies by year-end.[5][6] Within 19 months after debut, Twice has sold over 1.2 million units of their four EPs and special album.[7][8]