Sunny and Lee Kuk Ju spend a fun time with special guest YoonA on the set of 'Roommate'

SBS' 'Roommate' got SONEs excited for the episode to come with a BTS photo of Girls' Generation's Sunny and Lee Kuk Ju with special guest YoonA!

According to the producers, Sunny invited fellow member YoonA to her share house in Seongbukdong, Seoul for a housewarming party. As mentioned previously, g.o.d's Park Joon Hyung also invited Danny Ahn, and Otani Ryohei invited Chaeyeon for dinner.

YoonA was the last guest to arrive, and surprised the roommates with her visit. YoonA greeted the roommates as she shared, "I've been a devoted viewer of 'Roommate' since season 1," and gifted them with a cake. As she got a tour of the house, YoonA couldn't stop laughing at Lee Kuk Ju's jokes, and YoonA returned the favor as she performed "Gee" and other hit songs from her group as a special treat. Chaeyeon also performed her past hit "Two of Us", and Danny Ahn performed "Dear Mother".

Stay tuned for this exciting episode!

YoonA pays a surprise visit to the 'Roommate' house

http://www.youtube.com/watch?feature=player_embedded&v=liteEYF_5pk

Girls' Generation's Sunny brought her groupmate and friend YoonA to visit the 'Roommate' house in the latest episode!

"It's a bit like our dorm," YoonA remarked as she entered through the front door.

The reactions from the cast members were as could be expected. "It's too awkward. Can you leave?" Jo Se Ho joked. Jackson, meanwhile, could only let loose an "Oh my God!" before quickly grabbing Sunny in embarrassment!

Check out the clip above.

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