On December 2, T-ara gave a preview of their MV for their new comeback song "What Should I Do," which will be included in their repackaged eighth album 'AGAIN 1977.'  

SEE ALSO: T-ARA members reunite to celebrate Hyomin’s wedding

On this day, T-ara talked about this chance to remake Sand Pebbles' "What Should I Do" and showed the main point in their choreography, proving that they would be making a strong comeback as the queens of retro.  

The girls' huge popularity in Japan was also mentioned.

Soyeon said in relation to that, "Many sunbaes and colleagues created the Hallyu and K-Pop culture before us so they paved the way," giving credit to other artists.

She continued, "It seems we were loved because we added T-ara's uniqueness or charm to that.  For our Japanese debut song 'Bo Peep Bo Peep,' we dressed up as cats and it had a lot of special elements, such as the outfits and the fact that people could sing along easily."

They will be making their first comeback stage on 'M! Countdown' on December 5 KST! Check out the video of their stream from the live comeback showcase below.