Doing the splits in itself is impressive. Easily doing the splits in mid-air while hanging onto a hammock is absolutely incredible.

On the April 14 episode, which also happened to be the last episode of SBS' 'Roommate', After School's Nana, Girls' Generation's Sunny, KARA's Youngji and g.o.d's Park Joon Hyung tried out flying yoga to take care of their health.

Park Joon Hyung had a lot of trouble with flying yoga, as he was quite stiff. He wasn't very successful at the positions, including the Spiderman, Da Vinci, and Peter Pan positions, causing him to get a bit aggitated. 

Like Park Joon Hyung, the three ladies were also nervous before starting the flying yoga session. But in comparison, they were amazing as they easily learned many positions. Sunny and Nana, especially, showed off their flexibility as they made perfect splits in mid-air (The Da Vinci position) and easily lifted their lower half of the body back (the Peter Pan position) and more.

Park Joon Hyung hilariously commented, "I knew they would be like this. They have a hammock hanging in their bathroom."

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Check out the fun segment below (16:10 mark)!