Oh My Girl released another cute MV teaser for the aegyo-filled title, "A-ing"!

The song follows the reggae trend of this summer time while maintaining a catchy poppish tune.  The girls seem like Bohemian mermaids as they lie in sand, sit in what's decorated to look like the bottom of the ocean, and dance in an empty pool painted to be full.

Check out a bit of their moves above, as well!