Girls' Generation's Seohyun wants to make sure you watched the first "Mr.Mr" teaser video.

She tweeted on February 11, "Girls' Generation's teaser is out! Have you heard of 'Mr.Mr'? If you haven't watched it, gogo!" Seohyun also shared a photo, giving a closer look at the concept for the group's comeback.

Fans commented, "Seohyun is so pretty," "The maknae is all grown up now," "I watched the teaser video, Seohyun. I'm so looking forward to it."

The nine members of Girls' Generation are returning on the 19th, while their album releases on the 24th. How excited are you?