Picture Perfect/Rex

WHAT SHE WORE For a Las Vegas press event, Cameron Diaz topped an asymmetrical Roland Mouret LBD with a linen Elizabeth and James blazer and added leather Lanvin wedges.

WHY WE LOVE IT The Bad Teacher actress gave a lesson in layering with her modern pairing of crisp separates.

CELEBRITY: Cameron Diaz

DESIGNER: Roland Mouret

TREND: Belts

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Cameron Diaz

Cameron Diaz