PHOTOS: Anne Hathaway stepped out bra-less in racy see-through dress

With her racy see-through dress, and platinum hair style, Anne Hathaway was clearly delving into her experimental side for Monday evening's Met Ball.

The star showed off a great deal of cleavage and was a clear departure from the Academy Award-winner's usually demure looks.

The Les Miserables actress stormed the event in a black vintage Valentino gown from the designer's 1992 archives.

The sequinned head-turner included feathered sleeves and mesh panels, which proved conducive to a slight wardrobe malfunction as she exposed a wayward nipple.

more pictures after the break...