Seohyun wants to make sure you've listened to "Mr.Mr"! 

The maknae of Girls' Generation took to Twitter to promote the group's latest single on February 26, posting, "U guys waited a really long time!! Did u all listen to our new single yet?? Please show Mr.Mr. lots and lots of love."

She also posted a photo showing more of the look that she'll be rocking for the "Mr.Mr" concept, a definite change from the more traditional look she had for her recent musical 'The Moon that Embraces the Sun'. 

Fans commented, "She's wearing 'Mr.Mr's concept," "Her hair color is intriguing," "She looks so good in white," and more.

Girls' Generation will be holding their first comeback stage with "Mr.Mr" on the March 6th episode of 'M! Countdown'. Stay tuned for more updates on their return!