Girls' Generation's Jessica and YoonA�did not look too happy in recent selcas. It seems that they've been keeping busy with their recent comeback with "Mr.Mr"!

Jessica wrote on Weibo, "We're sleepy...and tired..." She also shared the picture above, and they do look like they're in need of a nap. The two idol stars still look cute, pretty, and surprisingly fresh despite their exhaustion.

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Netizens wrote, "Jessica and YoonA are really cute," "There are no goddesses like Jessica and YoonA," and "Take care of your health since you must be very busy with your comeback."

Did you watch Girls' Generation's "Mr.Mr" comeback stages last week?