Fashion & Beauty

Rosie and Olga look ravishing, while Rose looks ridiculous (again)

The week’s best dressed women did both ladylike and sexy with spangles, spaghetti straps and lace. Meanwhile, the ones who looked tragic took “sexy” too far with cleavage, brash colors and tons of fake hair.

The hits:

Alexa Chung

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Let’s file this under “only Alexa Chung.”

Ms. “It” wore winsome Emilia Wickstead to the launch of her Alexa Manicure collection with Nails Inc.

The mock neck, short-sleeved A-line number in “It’s a girl!” pink is perfectly man-repelling, particularly as paired with ballet flat-like Bionda Castana kitten heels.

Olga Kurylenko

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Never one to disappoint, the Russian actress attended the LA premiere of her latest movie, “The November Man,” wearing a midnight Michael van der Ham dress with sinuous diamanté detail. Simply blue-tiful.

Rihanna

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Let’s be real: What’s more appropriate for a summer Santa Monica dinner than a slinky slip dress and a comfy pair of sneakers?

The singer dressed up her Nasty Gal dress and Lanvin sneakers with tons of simple jewelry.

Rosie Huntington-Whiteley

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She’s back!
After an absence from the film trail red carpet (due to a dearth of roles) the Brit bombshell has resumed her scene-stealing ways. To this end, the stunner went with Emilio Pucci for “The Expendables 3” premiere in LA.

The misses:

Bella Thorne

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To be fair, the 16-year-old’s plunging dress worn to the Teen Choice Awards is sewn with flesh-toned swath, so it’s not as provocative as it could be.

Still, it’s awfully tacky — as are the spray tan and matching extensions.

Carmen Electra

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Speaking of tacky and extensions…c’mon on, Carmen! Your cleavage looks more like a butt crack.

Not sure why she’s at the LA premiere of “The Expendables 3,” but talk about being expendable.

Rita Ora

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This Santa Monica event gave Ora a great excuse to try My Little Pony meets the Marlboro Man.

Rose McGowan

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McGowan was last seen serving campaign and canapés at the HFPA Grants Banquet in Beverly Hills.

Lightning round: Draping lessons with Katie Holmes

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Do: Flaunt your fantastic shape in Zac Posen’s gorgeous, body-flattering ripples.
Don’t: Dress like a glammed-up Batgirl in a top that looks like Gothic curtains.