[VID] SNSD Taeyeon, Tiffany, Jessica and YoonA's Cuts and Full Episode from KBS' "Happy Together"

After teasing us with their pictures, Taeyeon, Tiffany, Jessica's appearance on "Happy Together" has now been aired by KBS with the special participation of SNSD's YoonA who dropped by and joined them for a short while.

Filled with the adorable charms of the four, you shouldn't miss this one specially if you are looking for laughter.  Check out their fun cuts below~

Taeyeon and Tiffany dancing to "Twinkle" followed by "The Boys" Parody

Taeyeon, Tiffany and Jessica playing the FUN "Do Re Mi" Game

Taeyeon, Tiffany and Jessica's Cute Childhood Pics

YoonA drops by at the show

YoonA leaving with white carpet treatment? :D

Twinkling YoonA

FULL EPISODE - RAW/UNSUBBED