Girls' Generation's Sunny performed to Brown Eyed Girls Gain's "Bloom".

Today, SM Entertainment revealed pictures of Girls' Generation's concert, where Sunny sang and danced to Gain's "Bloom".

Yesterday, Girls' Generation held the 'Marchen Fantasy' concert for the 'SMTOWN WEEK'.

Sunny appeared in a red and black outfit, exactly like the one that Gain wore for her performances.

Photo Credit: SM Entertainment