KARA has now dropped the MV trailer for their comeback with "Mamma Mia," featuring all four members!

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Each girl looks gorgeous with their orange and pink themed make up and then sexy for the dance portions in which they're dressed all in black.  It looks like they had a lot of fun, as well, especially by the party clip near the end in which they wave sparklers around excitedly.

Looks like fans have a lot to look forward to!