Fashion Faceoff

Sometimes, stylish star minds think alike. You decide: Who wears it better?

RIHANNA VS. SIENNA

The singer paired her Twenty8Twelve skirt with a button-down and pearls for a day of shopping, while the designer of Twenty8Twelve (along with her sister Savannah) paired her own creation with a Susie Rose tank top and her favorite Prada purse for a day out in N.Y.C.