Girls' Generation visited the set of KBS 2TV's 'Prime Minister and I' on December 29 to show their support for fellow member YoonA.  Unfortunately, it appears Tiffany was not able to make it, but the girls still showed off their cozy team spirit as they posed for pictures.

In the above picture, Girls' Generation are posing together happily while holding up various hand signs.  The members stated, "Although it was small act, we came here to show our support in hopes of giving some heartfelt strength to YoonA, who has a busy year-end schedule consisting of both side-by-side performances and drama."

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The drama's production team stated, "The cast and crew were able to forget the cold and film in a warm atmosphere thanks to Girls' Generation's surprise visit, which was like a year-end present from which we gained strength.  We'd like to take this chance to thank Girls' Generation."

The girls also posed with a very happy-looking Lee Bum Soo in the picture below!