Over the past decade, few K-pop groups have shaped the global rise of Korean pop music quite like TWICE. Known for infectious choruses, polished choreography, and a carefully balanced mix of charm and performance skill, the nine-member group evolved from rookie survival-show contestants into one of the biggest girl groups in the world.
Formed by JYP Entertainment through the 2015 reality competition Sixteen, TWICE quickly became a cultural phenomenon in South Korea before expanding aggressively into Japan, North America, and other global markets. Songs like “Cheer Up,” “TT,” “Fancy,” and “The Feels” helped the group build an unusually broad audience across different generations of K-pop fans.
What separates TWICE from many other successful idol groups is longevity. While many K-pop acts struggle to maintain momentum after their early years, TWICE successfully reinvented their image multiple times while continuing to break touring and album sales records globally. Today, they are widely considered one of the defining acts of third-generation K-pop and a major force behind the worldwide expansion of girl groups in Korean music.
How TWICE Was Formed
TWICE was created through Sixteen, a survival competition series produced by JYP Entertainment and broadcast on Mnet in 2015. The show featured female trainees competing for spots in the company’s next girl group. According to official profiles and entertainment coverage, the final lineup originally consisted of seven members before company founder Park Jin-young expanded the group to nine by adding Momo and Tzuyu after the competition concluded.
The final lineup included Nayeon, Jeongyeon, Momo, Sana, Jihyo, Mina, Dahyun, Chaeyoung, and Tzuyu. The group officially debuted on October 20, 2015, with the mini-album The Story Begins and the single “Like OOH-AHH.”
The group’s name carries a specific meaning. According to early promotional interviews covered by TIME, the name “TWICE” reflected the idea that the group would impact audiences “once through the ears and once through the eyes.”
That concept ultimately became central to their success. TWICE combined visually memorable performances with highly addictive pop songs that were designed to stick immediately with listeners.
According to official group profiles and recent member features from ELLE, TWICE consists of nine members from South Korea, Japan, and Taiwan.
Nayeon
Nayeon is widely recognized as one of the group’s most prominent centers and lead vocalists. She also became the first TWICE member to debut solo, releasing her own music beginning in 2022.
Jeongyeon
Known for her strong vocals and calmer personality, Jeongyeon became one of the group’s most recognizable members early in TWICE’s career. Recent reports also noted her growing interest in acting projects.
Momo
Momo is often considered one of K-pop’s standout dancers. Her performance ability played a major role in why JYP Entertainment added her back into the final lineup after her elimination during Sixteen.
Sana
Sana became especially famous for her bright personality and strong variety-show presence. She remains one of the group’s most recognizable public figures internationally.
Jihyo
As TWICE’s leader, Jihyo trained under JYP Entertainment for nearly a decade before debuting. Her leadership and vocal ability became central to the group’s stability during intense touring and promotional schedules.
Mina
Mina’s elegant performance style helped shape TWICE’s more mature musical evolution later in their career. She is also part of the Japanese subunit MiSaMo alongside Momo and Sana.
Dahyun
Dahyun became known for her humor, strong fan engagement, and variety-show skills. More recently, entertainment coverage highlighted her move into acting projects.
Chaeyoung
Chaeyoung is one of the group’s primary rappers and has increasingly participated in songwriting and creative concepts throughout TWICE’s later releases.
Tzuyu
As the youngest member, Tzuyu gained enormous popularity for her visuals and stage presence. She remains one of the most internationally recognized members of the group.
Their Breakthrough Changed K-pop Girl Groups
TWICE’s rise accelerated dramatically in 2016 with the release of “Cheer Up.” According to official chart records and industry coverage, the song became the best-performing single on South Korea’s Gaon Digital Chart that year and won “Song of the Year” at several major Korean award shows.
Their next major hit, “TT,” became even bigger culturally. The choreography and “TT pose” spread widely across Korean entertainment and social media, helping establish TWICE as one of the country’s most recognizable idol groups.
At a time when K-pop’s biggest acts were often male groups, TWICE helped lead a major resurgence for girl groups. Industry surveys cited by Sports Seoul and referenced in broader reporting later ranked TWICE as the leading girl group among Korean entertainment professionals.
The group’s early image focused heavily on bright concepts, catchy hooks, and synchronized choreography. That formula made their songs extremely accessible, especially for younger fans and casual listeners.
One reason TWICE became so important globally is that they succeeded across multiple major music markets simultaneously.
The group debuted officially in Japan in 2017 through Warner Music Japan and quickly became one of the country’s most commercially successful Korean acts. According to official records, TWICE became the first Korean girl group to achieve platinum certifications for both albums and singles in Japan during the same year.
Later, the group expanded aggressively into North America after partnering with Republic Records for U.S. promotions. Their English-language single “The Feels” became their first entry on the Billboard Hot 100.
TWICE also became one of the first K-pop girl groups to headline and sell out major stadium venues in the United States, including SoFi Stadium and MetLife Stadium.
This international expansion helped redefine what was possible for K-pop girl groups commercially.
Their Music and Image Evolved Over Time
One major reason TWICE maintained relevance for so long is their willingness to evolve musically.
While early hits focused heavily on cheerful and energetic concepts, later releases like “Fancy,” “Feel Special,” and “I Got You” explored more mature themes and production styles.
TIME’s 2019 feature on the group highlighted how “Feel Special” reflected the emotional struggles and pressures members experienced during fame, including public discussions surrounding anxiety and burnout.
That openness helped strengthen TWICE’s connection with fans. Rather than maintaining a purely polished idol image, members gradually became more transparent about mental health struggles, exhaustion, and the pressures of celebrity life.
The group also increased creative involvement in songwriting and concept development as their career progressed.
