One time Jin was scouted by one of the biggest companies in South Korea, S.M. Entertainment on the streets because they thought he was so good looking. He ran away because he thought it was a scam (Kpopkfans.blogspot)
He has very strong presciption glasses but, he never wears them so he is constantly squinting (Allkpop).
"J-Hope was part of the street dance team NEURON" (bangtanboys.wikia.)
"During 'Dick Clark's 'New Year's Rockin' Eve', J-Hope gained attention and went viral as "The one with the red hair and gold jacket"." (bangtanboys.wikia.)
He has an IQ of 148 meaning he is classified as a "genius" (bangtanboys.wikia).
He learned how to speak english by watching the tv show F.R.I.E.N.D.S. He started by watching it in Korean with English subtitles, then English with Korean subtitles and eventually in English with no subtitles (Metro.co.uk)
He is called the 'God of Destruction' by fans because he is known or beign clumbsy and breaking everything he touches (bangtanboys.wikia).
He was a hidden member. In Korea, groups will be publicized and the company will talk about them before they debut (put them on tv shows ,etc). Except in the case of BTS they were publicized with 6 people and they kept V hidden as a way to keep people interested (Reddit).
"He is the pickiest eater out of all of the members." (Bangtanboys.wikia)
He was scouted by seven different agenicies including two of the three bigest ones in Korea at the time, CUBE and JYP. He decided to choose Big Hit Entertainment because he liked his future bandmate RM (Bangtanboys.wikia)
He moved away from his family at 13 to join Big Hit Entertainment (Bangtanboys.wikia).
"His favorite singers are IU, Justin Bieber, Troye Sivan, G Dragon and Charlie Puth." (Bangtanboys.wikia).