Mad Men leading lady January Jones landed on pretty much every best dressed list for this baby blue satin number from Versace's Spring 2009 collection.

Christina Aguilera dons mini dress in a bold signature Pucci print.

Fergie recently stepped out in a sparkly cut-out frock from Pucci's Fall 2009 collection.

Cameron Diaz made fashion waves in a gorgeous pale pink Dior by John Galliano dress at the 2008 Oscars.

Eva Mendes walked the red carpet in a dramatic white Dior gown (complete with oversized bow) at the 2009 Golden Globes.

Keira Knightley goes for the sophisticated look in classic white Chanel Couture for a London premiere.

Natalie Portman looked lovely in lace in a black Chanel strapless at the 2006 Golden Globes.

Jessica Biel suited up in a classic YSL menswear look for recent premire.

Kate Winslet glammed it up at the Oscars this year with this one-shouldered YSL gown.

Christina Ricci went for an elegant vintage 1960s Madame Gres gown for the 2004 Golden Globes.