With only a few weeks before its premiere, new KBS drama "Prime Minister and I" is building up its promotions with new preview stills and teaser video.

Nam Da Jung, who will be portrayed by Girls' Generation's Yoona, is a young and passionate reporter who always seems to fall short in what she does. She seems to be living a double life, and from looking like a fierce tomboyish journalist in the morning, she transforms into an elegant but stealthy paparazzi at night. Both sides of Nam Da Jung are shown to be determined and hard working, giving a glimpse on what kind of character she is.

The staff and production team of the drama were very impressed with Yoona's performance as Nam Da Jung, and it was even reported that the idol-actress didn't have any NG during her filming.

Yoona said, "I feel that I will learn a lot through my activities in 'Prime Minister and I', and instead of taking this as a stepping stone, I will gather important lessons and transform into an actress who is confident about her performance."

Meanwhile, a short teaser video was also released, featuring Lee Bum Soo as the polished and elegant Prime Minister, and Yoona as the bubbly and diligent reporter.

"Prime Minsiter and I" is set to premiere after the conclusion of "Future's Choice".