The Wonder Girls are teasing fans with a mysterious snapshot.

On January 22nd, the girls surprised their Twitter fans with an update that read, "What does this scene look like? While in the midst of filming, we took a quick photo."

The Wonder Girls appear to be filming inside of a dance studio. Some fans wondered if it was for a future ad due to member Ye Eun's pose with a lime green sports bag. Others believe that it's a backstage photo from their new movie, 'The Wonder Girls'.

Netizens commented, "Is this for a sports brand endorsement?", "Haha, Sohee is goofing around again", and "I hope it's a new music video!!"

In related news, the Wonder Girls walked the red carpet recently for the premiere of their Teen Nick movie, "The Wonder Girls".

Source: Wonder Girls' official Twitter