After unveiling the album jacket cover for their 2nd mini album 'Everyday II', 5-member girl group Girl's Day have just revealed the teaser to their title track "Oh! My God"!

The teaser has a bit of the Crispi Crunch flavor with some comedic nicknames and voice overs.

Girl's Day will release their new mini album on April 18th and on the same day they will be holding an album showcase at M Cube.

Check out the teaser for "Oh! My God" below!