Girl's Day is rebooting after the sudden departure of ex-members Ji Sun and Ji In with the addition of new members Yura and Hyeri, so a re-introduction of the group was bound to happen, and now it's finally here. Girl's Day just released a short video clip on their official Youtube channel that highlights each member, and it features the girls goofing off around town with their bare faces, and includes footage of the group in training. The video also included an unintentionally humorous flub towards the very end, which you can see in the picture below.

Regardless, be sure to check out the clip of Girl's Day below! http://www.youtube.com/watch?v=HbVzZ7D61SU Thanks to miwi for the tip!