T-ara�has dropped another set of teaser images, and this time it features the beautiful Hyomin!

SEE ALSO: A survival show girl group was set to make their debut but it's now canceled

Out of all the teasers revealed so far, Hyomin's seems to hint at the upcoming retro-concept more so than the other members' with her more playful image as she blows bubbles and puts on mischievous expressions.�

As mentioned before, the girls' new music video and choreography will take on a musical like theme and this new retro-concept is said to have a different feel from their previous retro tracks like "Roly Poly".

The new title track, "2013 What Should I Do?"�is the work of Shinsadong Tiger and Polar Bear and features sampling of the song that won the traditional University Song Festival back in�1977,�Sand Pebbles' "What Should I Do?".

Be on the lookout for the other members' teasers ahead of the the girls' return on December 2!