- The Danza: Doojoon plays Doojoon in both of his sitcoms "More Charming by the Day" and "All My Love".
- Dawson Casting: Their Beautiful MV features Junhyung, Yoseob, Kikwang, and Dongwoon as high school students despite the fact that they are all out of high school. It's not too bad of an offense though, seeing as Dongwoon just graduated that same year anyway.
- Fan Nickname: Each member has several:
- Doojoon: Yoon Leadah, Stone Thighs, Butt Doojoon, Model Doojoon, Nation's Boyfriend-Idol
- Hyunseung: Eye Prince, Rancho, Seungseung, Bambi, Ice Queen
- Junhyung: Bald Junhyung, Yongjun Hyung, Yon-sama, Yongyong, Yongsica, Yong Joker, Tsunomon
- Yoseob: Seobseob, Yangyo, Visual Maknae ("youngest"), Pet Idol
- Kikwang: Kwangkwang, Dumbkwang, Stalker Saeho, Pelvis Kikwang◊, Kiki
- Dongwoon: Godwoon, Arab Prince, Old Man Son, Real Maknae
- Name's the Same: Kikwang had a really unfortunate instance of this while he was a solo singer. His stage name then was "AJ" which was short for "Ace Junior"; however, another AJ from the boy band Paran and his fans took offense to sharing the name. This culminated in an online fan war and Cube Entertainment backing down and agreeing to change Kikwang's stage name. Of course, now he just goes by his real name.
- What Could Have Been:
- Doojoon was one of the JYP Entertainment trainees in the running to join either 2AM or 2PM, sibling boy bands collectively called One Day. He was featured in the pre-debut documentary for the group, and was cut along with two other trainees.
- Hyunseung was the only Big Bang candidate to be eliminated before the group debuted, and was also featured in a pre-debut documentary regarding the group's training.
- Their Mastermind and Lights Go On Again mini-albums were originally supposed to be just one album.
Trivia / B2ST