Twice Members: Names, Ages, Nationalities, and Controversies

If you have ever tried to list the names, ages, and nationalities of all nine TWICE members from memory, you already know it takes a second—and getting it right matters for anyone following K-pop’s most internationally diverse girl group, from Nayeon’s industry-defining debut as the oldest to Tzuyu’s record as the youngest, with the lineup staying intact since the group’s 2015 launch. Here is every verifiable detail on all nine members, with confirmed facts and clear separation from what remains speculative.

Members: 9 ·
Debut: October 20, 2015 ·
Label: JYP Entertainment ·
Fandom: Once

Nine members, one consistent pattern: TWICE’s lineup has remained identical since debut — no member has permanently left.

Is TWICE 8 or 9 members?

TWICE has nine members — always has, and the count has never changed. The official profile maintained by TWICE Japan (official artist profile) lists all nine: NAYEON, JEONGYEON, MOMO, SANA, JIHYO, MINA, DAHYUN, CHAEYOUNG, and TZUYU. The JYP Entertainment (official group page) confirms the identical roster.

The reason some fans ask whether TWICE is 8 or 9 members stems from two well-documented temporary absences, not from a departure. Both members returned to full group schedules after their breaks.

Which TWICE member left?

• Jeongyeon took a hiatus in October 2020 due to health concerns — specifically Koreaboo (K-pop news aggregator) reported she was diagnosed with cervical disc herniation and anxiety — and returned to group schedules by early 2022.
• Mina took a hiatus from July 2019 to February 2020 after being diagnosed with severe anxiety and insecurity toward performing, according to statements from JYP Entertainment (agency statements).
• No member has permanently left the group.

The implication: TWICE’s nine-member lineup is among the most stable in K-pop, with both hiatus-era members returning to full participation.

Is Mina still in TWICE?

Yes, Mina is still a member of TWICE. She returned from her anxiety-related hiatus in February 2020 and has participated in all subsequent group activities, including the group’s 2024 world tour and 2025 album releases. The TWICE Japan (artist profile) continues to list her as an active member.

What happened to Jeongyeon from TWICE?

Jeongyeon took an extended hiatus starting October 2020. JYP Entertainment confirmed she was experiencing “sudden extreme anxiety and psychological tension” and later disclosed she had cervical disc herniation. She returned to group activities gradually through 2021 and has been fully active since early 2022. The TWICE Japan (artist profile) currently lists her as an active member.

The implication: TWICE’s nine-member lineup is among the most stable in K-pop, with both hiatus-era members returning to full participation.

Which TWICE member is not Korean?

Four TWICE members are not Korean: Momo (Japanese), Sana (Japanese), Mina (Japanese), and Tzuyu (Taiwanese). The other five members — Nayeon, Jeongyeon, Jihyo, Dahyun, and Chaeyoung — are Korean. According to Ohsumishoten (K-pop profile aggregation), the group composition is five Koreans, three Japanese members, and one Taiwanese member.

This multinational lineup — unusual for a K-pop group formed by a Korean survival show — has been central to TWICE’s global appeal, allowing the group to connect with fans across Japan, Taiwan, and Southeast Asia without language barriers during early promotional years.

What ethnicity is Chaeyoung?

Chaeyoung is Korean. She was born in Seoul, South Korea, on April 23, 1999, and is a South Korean national. DBKpop (K-pop database) lists her full name as Son Chaeyoung and birthplace as Seoul, South Korea.

The pattern: TWICE’s deliberate inclusion of Japanese and Taiwanese members during the 2015 survival show SIXTEEN created one of K-pop’s earliest genuinely international lineups — a strategy that preceded the current wave of multinational K-pop groups.

Who is the oldest member of TWICE?

Nayeon is the oldest, born September 22, 1995. The ages span from 1995 to 1999. Every birthday is confirmed by TWICE Japan (official artist profile):

• Nayeon (Im Nayeon, born September 22, 1995) — Lead singer, face of the group
• Jeongyeon (Yoo Jeongyeon, born November 1, 1996) — Lead singer
• Momo (Hirai Momo, born November 9, 1996) — Main dancer
• Sana (Minatozaki Sana, born December 29, 1996) — Sub vocalist
• Jihyo (Park Jisoo, born February 1, 1997) — Leader, main vocalist
• Mina (Myoui Mina, born March 24, 1997) — Main dancer
• Dahyun (Kim Dahyun, born May 28, 1998) — Lead rapper
• Chaeyoung (Son Chaeyoung, born April 23, 1999) — Main rapper
• Tzuyu (Chou Tzuyu, born June 14, 1999) — Lead dancer, maknae

What this means: Nayeon leads the group in age by roughly 14 months over Jeongyeon, while Chaeyoung and Tzuyu — the two youngest — are both born in 1999 and close in age, with Tzuyu being the youngest by 52 days.

Who has a boyfriend in TWICE?

No TWICE member has publicly confirmed a romantic relationship. Dating rumors involving various members have circulated in Korean and international media outlets — including reports linking Jihyo, Sana, and others to male idols — but these remain unconfirmed by either JYP Entertainment or the members themselves. JYP Entertainment has neither confirmed nor denied dating rumors about any current member.

The trade-off: In K-pop, dating rumors can affect idol careers and fan perception. JYP Entertainment has historically taken a neutral public stance on dating — neither confirming nor denying — which leaves fans with unanswered questions.

What is TWICE Chaeyoung diagnosed with?

Chaeyoung has not publicly disclosed any medical diagnosis. She has remained active in all group activities since debut. Speculation about an eating disorder or health condition emerged from fan forums after some fans noticed weight fluctuations, but no official statement or verified medical source has confirmed such claims. According to DBKpop (K-pop database), Chaeyoung continues to be listed as an active and participating member.

The implication: Without official disclosure from Chaeyoung or JYP Entertainment, all health speculation remains unverified.

What was the controversy surrounding the band TWICE?

TWICE has faced several controversies since debut, each rooted in the public scrutiny that follows any major K-pop group:

• Tzuyu’s Taiwan flag incident (2015): During a variety show appearance, Tzuyu waved a Taiwanese flag, which triggered backlash from Chinese netizens who view Taiwan as part of China. She issued a video apology, and the controversy eventually subsided.
• Jeongyeon’s hiatus speculation (2020-2021): Anxiety and health-related hiatus led to unfounded rumors about her leaving the group, which JYP Entertainment denied.
• Chaeyoung’s t-shirt controversy (2023): She wore a t-shirt with a design resembling a Nazi-era symbol. She apologized quickly, and the incident was widely criticized as a style oversight.
• Dating rumors: Various members have been the subject of dating speculation — including Jihyo and Kang Daniel (denied), and Sana and an unnamed idol — none confirmed.

The catch: TWICE’s controversies are almost entirely external — generated by political sensitivities, health speculation, or unverified gossip — rather than internal group conflict or member disputes.

Who is the skinniest member in TWICE?

Body type varies among members, and there is no official metric for “skinniest” — fan perception tends to shift with each comeback based on weight fluctuations visible in performances and photos. JYP Entertainment has never published body measurements or weight data for any member, and reputable fan profiles do not report such figures.

Who is the least biased member in TWICE?

This is subjective and varies widely by fan poll, region, and era. Older data from Korean fan community polls sometimes listed Chaeyoung or Dahyun as having smaller individual fanbases, but newer metrics — such as solo Instagram followers and brand endorsement deals — show different patterns. According to K-pop Stats (independent fan data aggregator), individual member popularity fluctuates significantly across markets: Tzuyu leads in brand value in China and Taiwan, while Sana and Nayeon dominate Japanese and Korean fan polls.

Why this matters: “Least biased” has no objective measure in K-pop — it reflects shifting fan demographics rather than member quality or talent — and should not be treated as a factual ranking.

For fans following TWICE, the verified facts are clear: nine members, stable lineup, multinational composition. The gaps — dating status, health speculation, subjective rankings — remain unconfirmed and outside any official source. For JYP Entertainment, TWICE’s stable multinational lineup continues to be a competitive asset in global K-pop markets.

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