Last Night's Look: Hit or Miss?

Vote on this week's styles including Heidi Montag, Audrina Patridge and more stars! You decide – are they fashionistas or flops?

RIHANNA

From fierce fashion to a touch of preppy chic, Rihanna changes up her look in an oversized striped button-down, sweet floral skirt and fringed Christian Louboutin booties with a pin-topped hat for an outing to Long Island, N.Y.