Over the course of ten episodes broadcast between May and July, 2015 on Mnet, JYP Entertainment held a survival show called "Sixteen".
Controversial following its release, with the viewing audience referring to the show as "cruel" and "emotional abuse", "Sixteen" featured sixteen female trainees competing to earn a place in JYP Entertainment's new girl group.
That girl group - TWICE.
With nine members in TWICE now, what has happened to the other seven trainees since? Read on below to find out.
Chaeryeong
Following the finale of "Sixteen", Chaeryeong remained with JYP Entertainment as a trainee.
Her loyalty and hard work paid off, as she ended up debuting in the hugely successful JYP Entertainment girl group ITZY, which has gone on to become one of the most successful rookie girl groups of all time.
Chaeyeon
After competing on "Sixteen", Chaeyeon ended up leaving JYP Entertainment, and making her way over to rival agency WM Entertainment.
As a member of WM Entertainment, she competed on Mnet's "Produce 48", where she placed 12th, just scraping herself a position in the debut temporary group IZ*ONE.
After IZ*ONE disbanded, she returned to WM Entertainment and competed in "Street Woman Fighter". She is expected to re-debut in a permanent group soon.
Chaeyoung
Chaeyoung is currently one of the nine members of TWICE. Her roles include main rapper and sub vocalist.
Dahyun
Dahyun is currently one of the nine members of TWICE. Her roles include lead rapper and sub vocalist.
Eunsuh
Following the finale of "Sixteen", Eunsuh left JYP Entertainment.
She went on to compete in Mnet's survival show "Idol School", where she ended up placing 14th overall.
She now shares dance videos to her Instagram page.
Jeongyeon
Jeongyeon is currently one of the nine members of TWICE. Her roles include lead vocalist.
Jihyo
Jihyo is currently one of the nine members of TWICE. Her roles include leader and main vocalist.
Jiwon
Another successful alumnus of "Sixteen", Jiwon eventually ended up leaving JYP Entertainment and joining Off The Record.
She also went on to compete in Mnet's "Idol School", as many as the competitors did, where she placed sixth, eventually going on to debut in fromis_9.
Mina
Mina is currently one of the nine members of TWICE. Her roles include main dancer and sub vocalist.
Minyoung
Following "Sixteen", Minyoung ended up leaving JYP Entertainment and returning to her home in Washington state in the United States.
She has since started a YouTube channel where she talks, in part, about her experiences as a member of the survival show.
Momo
Momo is currently one of the nine members of TWICE. Her roles include main dancer, sub vocalist, and sub rapper.
Natty
After not making it into the final group from "Sixteen", Natty left JYP Entertainment.
Her next appearance in a survival show came from Mnet's "Idol School", where she placed 13th.
Natty went on to join Swing Entertainment, where she then debuted as a soloist.
Nayeon
Nayeon is currently one of the nine members of TWICE. Her roles include lead vocalist, lead dancer, center, and face of the group.
Sana
Sana is currently one of the nine members of TWICE. Her roles include sub vocalist.
Somi
Following "Sixteen", Somi went on to compete in another survival show - Mnet's "Produce 48", where she went on to place 1st.
As the winner of the show, Somi went on to debut in the temporary group I.O.I.
Following I.O.I.'s disbandment, she went on to leave JYP Entertainment, joining YG Entertainment's subsidiary The Black Label, where she re-debuted as a soloist.
Tzuyu
Tzuyu is currently one of the nine members of TWICE. Her roles include lead dancer, sub vocalist, visual, and maknae.