With a Diane von Furstenberg dress that sexy, who needs full-on hair & makeup? The wide-eyed Olsen kept her look so low-key, it almost looks as if she did everything herself.

Married life must be nice! The fresh-faced newlywed actress/singer looked beyond flawlessly amazing with sleek hair, gleaming skin, and petal-pink lips.

All glitz and glamour. What else would you expect from her? Caramel-color curls, golden lips, and in traditional J. Lo fashion, shimmery eyeshadow and spiky lashes.

The gorgeous southern belle played the role of the pretty princess with a chic updo, flirty, inky lashes, and frosty pink lips. Her best accessory? Her mega-watt grin!

Psychedelic power! The 21 starlet paired her kaleidoscope-like Chanel Haute Couture gown with striking electric blue eyeshadow. Good thing her lipstick is pared-down!

Talk about being all covered up! The adorable Jumper actress accessorized her slinky Calvin Klein number with a coiled coif, complete with super long, shaggy fringe.

A classic retro beauty. The new mom went the 'Old Hollywood' route with her look: soft, curls, fresh dewy skin, and the staple matte red pout.

Drama, drama, drama! The Run Fat Boy Run actress punched up an otherwise muted look by rimming her lids with a metallic gunmetal shade.