Sexy girl group SISTAR showed off their classy elegance in their CF for online shopping site�'11 St.'�as the representative models. Some photos as well as the CF clips were unveiled, showing the refined and sophisticated image of the members in evening gowns that toned down their usual fierceness for something more subdued, luxurious, and chic.

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A rep stated, "This advertisement used the theme of 'whisper' for this unique advertisement. �You'll be able to feel an auditory catharsis as you tilt your head in to hear SISTAR's whispered messages."

Check out their individual and group CF clips through the playlist and photos below!