Most K-pop idol stars spend years of training before they finally make debut as a member of their group.

▶ [SBS Star] Idol Stars with the Longest Trainee Years

However, for some idols, they were able to debut with less than a year of training.

Check out the list of idols who debuted with less than one year of trainee experience.

1. Suzy and Wanna One's Bae Jin Young: 10 months
2. Wanna One's Ong Seong Wu: 8 months
3. GOT7's YOUNGJAE: 7 months
4. Wanna One's Lai Kwan Lin: 6 months
5. VIXX's KEN: 5 months
6. EXO's BAEKHYUN and CHEN: 4 months
7. Apink's Jung Eunji and NCT's CHENLE: 2 months
(Credit= JYP Entertainment, SWING Entertainment, Jellyfish Entertainment, Plan A Entertainment, SM Entertainment) 

(SBS Star)