Celeb Fashion Hit or Miss

Vote on this week's styles from Mary-Kate Olsen, Rihanna, Blake Lively and more stars! You decide – are they fashionistas or flops? By Melissa Liebling-Goldberg

SHARON STONE

The actress explains her Dior zebra-print pajamas at the Diamond Information Center dinner, telling PEOPLE: "They said diamonds, so I didn't have to worry about clothes!"