T-ara has just revealed the music video teaser for 'Don't Remember' 

SEE ALSO: Why K-netizens are sympathizing with Min Hee Jin following her emotional press conference

As mentioned previously, the girls' new music video is 9 minutes long, and their choreography will take on a musical like theme.

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!