Sixteen (stylized in all caps; Korean: 식스틴) is a 2015 reality girl group survival show created by JYP Entertainment and Mnet.

[4][5][6] Based on the performances seen in the first episode, Natty, Chaeryeong, Somi, Sana, and Jihyo replaced Momo, Jiwon, Mina, Minyoung, and Nayeon in the Majors line up, respectively.

The girls' next mission was "Album Jacket Cover," which challenged them to focus and produce high-quality photos in less-than-ideal conditions.

The results of the photo shoot exposed the strengths and weaknesses of the girls, revealing the natural charms of some and the struggles of others.

[7][8] Due to their performance in the photoshoot mission, Mina, Tzuyu and Jeongyeon replaced Chaeryeong, Jihyo, and Dahyun in the Major line up, respectively.

Chaeyeon is eliminated from the competition because Park Jin-young observed that her inexperience and desire to do well obscured her natural charm and made her appear cold and stiff in the photos.

The third mission, 1:1 Battle, is announced and results in Nayeon and Chaeryeong returning to Major status by replacing Tzuyu and Sana.

The final Major line up for this episode is Nayeon, Chaeyoung, Somi, Mina, Chaeryeong, Natty, and Jeongyeon.

However, the battles involving Somi, Minyoung, Mina, Eunsuh, Chaeyoung, Jihyo, Momo, and Natty will air the next episode, leaving their final fates unknown this week.

[13] Tzuyu, Minyoung, Dahyun, and Sana move up to the Majors lineup, while Mina, Nayeon, Chaeryeong, and Jeongyeon fall to the Minors.

The final Major line up for this episode is Tzuyu, Minyoung, Dahyun, Sana, Natty, Somi, and Jihyo.

[17] After completing Variety Camp, Park gathers the girls together and announces that the mission will be member elections, where they will cast private votes on the Major and Minor line-ups.

Major A (Jihyo, Chaeyoung, Minyoung, Sana) prepared a slow, sexy version of Wonder Girls' "Nobody"; Major B (Nayeon, Jeongyeon, Tzuyu) chose to perform miss A's "Hush"; Minor A (Dahyun, Jiwon, Chaeryeong) also chose to emulate Wonder Girls with "Tell Me"; finally, Minor B (Mina, Somi, Natty) created a reinterpretation of JYP's "Who's Your Mama?".

[22] Jihyo, Sana, Minyoung, and Chaeyoung are the first to make the Major lineup, with the greatest number of attendees (194) returning red balls.

While preparing for the final mission, the Major and Minor team are visited and mentored by Miss A's Fei and 2PM's Jun.

The teams spend one last night together reminiscing on their journey throughout the show, laughing at each other's silly moments, and sharing their heartaches and hopes.

Chaeyeon, Eunsuh, Momo, and Jiwon join the final contestants on stage for a farewell performance before the results are announced.

Nayeon, Jeongyeon, and Dahyun take the place of Natty, Somi, and Minyoung in Major lineup, respectively, thus eliminating them alongside Tzuyu and Chaeryeong.

Along with the current Major line up (Nayeon, Jihyo, Mina, Dahyun, Jeongyeon, Chaeyoung, and Sana), he chooses Tzuyu to join.

Tzuyu is added from the audience's opinion through online voting and Momo from the A&R Team and the Trainers' decision.

[28] The group's final line up is: Nayeon, Jeongyeon, Momo, Sana, Jihyo, Mina, Dahyun, Chaeyoung, and Tzuyu.

"[35][36] In early 2016, Somi competed in the Mnet reality girl group survival series Produce 101, which premiered on January 22.

[37] On August 20, 2018, JYPE released an official statement on their website that Somi has terminated her contract and left the company.

[38] Later in September 2018, she signed an exclusive contract with YG Entertainment's sub-label The Black Label, where she debuted as a solo artist with her title track "Birthday" in June 2019.

In July 2017, Eunsuh, Natty and Jiwon competed on the Mnet reality girl group survival show Idol School.

[49] In February 2021, Minyoung resurfaced after six years by opening her YouTube channel, in which she plans to release vlogs, song covers, and self-composed music.