SIXTEEN was a reality survival show created by JYP Entertainment and Mnet. It determined JYP's future girl group TWICE, and it put sixteen JYP trainees against one another.
Somi later joined Produce 101, and won 1st place, making her a part of I.O.I until their disbandment. In February, 2017, Somi joined the second season of the show Sister's Slam Dunk and became a member of the group Unnies until the show ended. Later, she became a member of the project group Girls Next Door, during the show Idol Drama Operation Team. In August, 2018, Somi left JYP Entertainment and joined The Black Label, a sub-label of YG Entertainment, a month later. And finally, on June 13, 2019, she made her solo debut with the digital single, "Birthday".
Jiwon and Minyoung left the agency to pursue their dreams elsewhere.
Theme song "I'm Gonna Be a Star" was re-recorded by TWICE and included on the physical version of their second mini-album Page Two.
Only Jiwon made it to the final line up, debuting as a member of the girl group fromis_9 on January 24, 2018 with the mini album To. Heart.
Chaeyeon later joined Produce 48 and came in 12th, making her a member of IZ*ONE until their disbandment. The group debuted on October 29, 2018 with mini album Color*IZ. On April 29, 2021, IZ*ONE disbanded. Chaeyeon made her solo debut with the mini album Hush Rush on October 12, 2022.
In January, 2019, Chaeryeong was announced as a member of the newest JYPE's girl group, ITZY, which debuted in February 12, 2019 with the digital single "IT'z Different".
In May, 2020, Natty under the label Swing Entertainment, debuted as a soloist with the single album "NineTeen". On July 5, 2023, she made her debut as a member of the girl group KISS OF LIFE with the mini album KISS OF LIFE.