| 1 | 2PM's Jun.K legally changed his name in 2012 from Kim Junsu to Kim Minjun du to some personal family matters.   | 
| 2 | Nickhun from 2PM has a very wealthy family in Thailand so he got a nickname 'Thai Prince'. | 
| 3 | Chorong from A-pink used to train Hapkido for eight years. She has a black belt of 3rd degree.   | 
| 4 | Sungjae from BtoB - like many other Korean wannabe artists - was eliminated in the final round of JYP Entertainment's audition for the young talents. | 
| 5 | Xiuan Yi from WJSN (Cosmic Girls) participated in a Chinese version of Produce 101 where she finished on the second place and joined as a member of Rocket Girls. She will be promoting for 2 years. | 
| 6 | B2ST members changed the name of their band to Highlight when they moved from Cube Entertainment company to their new agency Around Us Entertainment in 2016. | 
| 7 | After she joined MBK Entertanment Chaeyeon from DIA was a trainee only for 5 months before she debuted.   | 
| 8 | Monsta X Jooheon was a member of other KPop group called Nuboyz of Starship Entertainment before he joined his current group.   | 
| 9 | Due to hyperthyroidism Solji from EXID was on a hiatus for two years between 2016 and 2018. | 
| 10 | Umji from GFriend speaks fluently English which she taught herself watching Disney movies. | 
| 11 | Yein initially auditioned to become an actress but eventually become a member of a girl group Melody Day. | 
| 12 | In 2017 through TV show Idol Drama Operation Team Sujeong from Lovelyz became a member of a newly created project girl group Girls Next Doors along with 6 other members. | 
| 13 | J-Hope from Bangtan Boys featured as a rapper in 2AM Jokwon's song Animal. | 
| 14 | Lay from EXO is an ambassador of many well known brands like Milka, Valentino, Converse, Huawei Nova and Perrier.   | 
| 15 | Key from SHINee is a designer behind many of the group's outfits and costumes used during concerts and music videos shooting. | 
| 16 | Super Junior's Yesung was brought to a hospital after he run 70 km in a marathon during a charity event.   | 
| 17 | Kangin from Super Junior was arrested for driving under the influence of alcohol twice - in 2009 and 2016. | 
| 18 | Kang Daniel received 1,578,837 votes during the second season of Produce 101 and ended first in the competition. He later become a member of Wanna One.   | 
| 19 | Wanna One's Jihoon trained at SM Entertainment, Fantagio and Maroo Entertainment before he took part in Produce 101 and joined Wanna One. | 
| 20 | Hoony from Winner was living next to YG Entertainment building and eventually become an artist under this company. | 
| 21 | Hyejong was spotted during a modeling contest by a representative of FNC Entertainment and become a member of a girl group AOA. | 
| 22 | Jennie from Blackpink is a friend with many other girl group artist like Chahee (Melody Day), Irene (Red Velvet), Lime (Hello Venus), Nayeon (Twice).   | 
| 23 | Elkie from CLC was born in Hong Kong. For some time she was a member of a created there girl group Honey Bees. | 
| 24 | Sojin from Girl's Day worked once as a voice trainer for another KPop group - boy band Ulala Session. | 
| 25 | Gir's Day's Yura is known for insuring her legs for a stunning 500 million won (almost 500,000 dolars).   | 
| 26 | Gugudan's Soyee was chosen as a member of A-pink but she eventually couldn't debut under A Cube and became a member of Gugudan under Jellyfish Entertainment. | 
| 27 | Both of the ears of Haseul from LOONA has different size and shape. | 
| 28 | Chuu deleted her Instagram account right after she was confirmed as a LOONA member. | 
| 29 | Binnie from Oh My Girl was a child actress that starred in many Korean dramas like Beethoven Virus, Sungkyunkwan Scandal and I Love You, Don't Cry. | 
| 30 | Rina from Weki Meki likes watching anime movies. Her favorite movies are those from studio Ghibli - Spirited Away and The Secret World of Arrietty. |