Well, she's got the look down.

That cool, mysterious, ice-blonde look with the sizzling sexuality underneath.

Singer Christina Aguilera is channeling the iconic look of the classic Alfred Hitchcock blonde for an advertising campaign for a luxe jewelry line.

I'd say while she's not quite matched the glorious Grace Kelly in Rear Window and To Catch a Thief, she's right up there with Kim Novak in Vertigo, Tippi Hedren in The Birds, and even the adorable Madeleine Carroll in The 39 Steps.

Aguilera in a shot from the jewelry campaign