SNSD's Yoona has changed her hair color to black, raising assumptions that it's a hint for their comeback.

On February 5, Yoona attended the after party of their successful drama 'Prime Minister & I' in Yeouido-dong, Yeongdeungpo-gu, Seoul. In the event, Yoona revealed her new hair color. Fans assumed that it's part of the preparation for their pending comeback.

On the 4th, SM representative revealed, "Yoona finished all the last shooting on 3rd and after the last episode on 5th, she is going to focus on SNSD's upcoming album."

Are you anticipating their comeback? Meanwhile, how does she look in black hair? Check out the photos below: