JYJ members Jaejoong and Yoochun really know how to have some fun.

JYJ members Jaejoong and Yoochun showed off their current whereabouts, which has become a hit on the Internet.

On October 24th, JYJ's Jaejoong uploaded a video onto his Instagram with the words, "Yoochun and Jaejoong, album monitoring."

In the video, Jaejoong is holding the camera, and Yoochun is standing behind Jaejoong wearing shades and headphones, who seems to be practicing singing.

Then Jaejoon hands the camera off to someone else, and he and Yoochun dance comically, which made the fans laugh.

Upon seeing this comical and fun video of Yoochun and Jaejoong, fans commented, "Yoochun's present condition, looks like they're having fun~" "Yoochun's present condition is so hilarious," "He must be having a great time," and "Wow, what a big hit."

Photo credit: Jaejoong's Instagram