Trendiest Nail Colours

AMANDA BYNES

The actress-designer shows off her handiwork – and bright purple nails!

MARY-KATE OLSEN

While taking in an N.Y.C. fashion show, the Weeds star goes fashion forward with neon pink nails.

EVA MENDES

The actress blows a kiss with one of the hottest colors of autumn – dark, ink-like, navy blue.

SIENNA MILLER

What could be more classic than a Chanel quilted bag? Rounded red nails, like Sienna Miller's.

RIHANNA

Always up for a new look, the fashionable singer tries out a verdant shade of green.