- Dye Hard: Kevin is almost always blond, but they've all changed their hair colour quite a few times.
- Fan Nickname: All the members have nicknames. Eli has 'pigeon', Hoon has 'bunny', Kevin has 'fishy', Soohyun has 'lion' and Kiseop has 'kumaseop' ("bearseop"), and AJ has 'kitty'. AJ and Hoon have theirs due to a resemblance, and Eli has his due to his penchant for bird impressions.
- Name's the Same: UKISS' Jaeseop and B2ST's Kikwang both use the same stage name, 'AJ'.
- No Export for You: Subverted. Whilst UKISS haven't done many concerts in Europe or North America, they frequently go to South America.
- Promoted Fanboy: Kiseop, who was added after the first album. He can actually be seen in the MV for 'Not Young' as a back-up dancer, though.
- What Could Have Been: Kevin and former member Kibum used to be in a group called 'Xing', and Eli used to have a contract in China. Both Xing and the Chinese contract were fraudulent, however, so it's probably better that neither of them panned out.
Trivia / U Kiss