T-ara is back with 'What Should I Do?' on Mnet's M!Countdown!

The wait is officially over!

Starting on Mnet's M!Countdown, here's the much awaited comeback of T-ara. Check out their hot comeback performances below.

'1977 Do You Know Me' + 'What Should I Do'

♦ Buy T-ara's 'Again 1977' Here

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