On September 24, B2ST's Junhyung updated his Instagram with a video of JYJ's�Jaejoong and Super Junior's�Heechul clearly having fun at the karaoke. �Junhyung seems to be watching and filming while the other two are singing 'For You' together, showcasing perfect vocals and happy smiles.

Who wouldn't want to go to the karaoke with these three? �There's no doubt they enjoyed the stress-free karaoke session together. Check out the clip above.

SEE ALSO: B2ST's Junhyung reveals he doesn't shy away when it comes to wooing women

[Thanks for the tip, cassitimi!]