Ashley Olsen looked crisp, clean and stunning at the premiere of The Hangover last night atHollywood’s Grauman’s Theatre. Ashley made the rare red carpet appearance to support her boyfriend, Justin Bartha, who stars in the film. Ashley didn’t want to steal Justin’s thunder though, so they walked the red carpet separately.

I don’t think anyone in Hollywood does minimalism as well as Ashley is right now. She pairs a simple Calvin Klein dress with snakeskin sandals and no accessories (except her glowing skin and a smile!) and looks fabulous. She’s also debuting the hair cut she got while she texted Marie Claire. I like the shorter ‘do. Do you?

The Hangover is about a bachelor party in Los Vegas gone horribly awry -so awry that the groomsmen lose the groom-to-be. Hilarty ensues. The Hangover has opened to very positive reviews and I’ll admit I’m excited to see it. Justin plays Doug, the missing groom, so who knows how much screen time he’ll get. Regardless, it should be fun. Justin was adorable in the National Treasure films.

Images: Splash News Online

Ashley Olsen looked positively regal at last night’s Costume Institute Gala. She stepped out in a long white dress that was very demure in the front, but had a sexy and dramatic back. Ashley walked the red carpet with her boyfriend Justin Bartha, who cleaned up nicely in a tuxedo!

This year’s theme was “The Model as Muse: Embodying Fashion”, which celebrated the Metropolitan Museum of Art exhibit of the same name. The exhibit celebrates the role of the model in fashion, as a model, a muse and more.

Tons of stars came out to celebrate the event and the fashion was spectacular! Pop Sugar did a great job of covering nearly every starlet who stepped out last night, so if you want more coverage, be sure to check it out!

Image: Splash News Online

Mary-Kate and Ashley Olsen both looked smashing at the Art of Elysium presents Bright Lights New City event at the Jane in New York city on May 1st. The party featured a performance by Santigold and saw guests such as Vanessa Traina, Ciara, Milla Jovovich, Agyness Deyn and Eva Mendes rocking out for a good cause.

The event was a New York City first for the Hollywood-based charity. The Art of Elysium connects artists and musicians with children battling serious diseases and gives them an opportunity to learn about and explore different creative outlets. The evening was co-hosted by Joy Bryant and raised a lot of money for a worth cause.

MK looked stunning in a menswear tuxedo jacket, original booties and a pink snakeskin clutch. The clutch matched boyfriend Nate Lowman’s pink and purple tie-dyed shirt! Ashley opted for a more casual, yet more classic look with black jeans, a white tank and a grey sweater. I’m so happy to see Ashley out and about again, I’ve missed her!

Images: Newscom

Ashley Olsen was one of several celebrities who came out last night to attend the Cartier 100th Anniversary Party. The party was held at Cartier’s flagship store on Fifth Avenue. Every attendee left with a bright red goodie bag. I wonder what is in them?!

Cartier, a french jeweller founded in 1847, was celebrating its 100th anniversary in America. They want all out with a swanky, star-studded party! I’m disappointed Ashley didn’t walk the red carpet pre-party, but am glad we caught a glimpse of her outfit as she left.

Other attendees included Anne Hathaway, Demi Moore, Eva Mendes, Kate Hudson, Justin Timberlake, Patti Smith, Rachel Weisz and more. All the stars were decked out in their very best - you can see a slideshow here!

Images: Splash News Online

Immediately after attending the Tribeca Film Festival Women Filmmakers Brunch on Thursday, Mary-Kate Olsen joined her sister Ashley Olsen for the 16th annual Women of Distinction Luncheon.

The luncheon, which was held at the Waldorf Astoria, honors women who have made a difference in film and television arts. They were founded in 1993 by the Hollywood Chamber of Commerce.

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Ashley Olsen looked stunning as she arrived at the CFDA Awards in a men’s style tuxedo from the Resort 2009 Chanel collection. It’s definitely a brave fashion choice, but a sweet one. Yves Saint Laurent passed away this week, and Ash is clearly paying homage to his Le Smoking Suit.

Ashley spent most of the evening with one of her fashion inspirations, Lauren Hutton. Lauren Hutton was the model for the Spring 2008 The Row Look Book and did a photo spread with Mary-Kate for her Harper’s Bazaar cover.

Mary-Kate didn’t attend the event. All the tabloids have been reporting she’s been having a rough time lately. While I tend to take those reports with a grain of salt, I do hope she’s okay and it’s just other commitments that kept her away.

Image details: The 2008 CFDA Fashion Awards served by picapp.com

Two more photos below the jump!

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Ashley Olsen walked down the pink carpet at the NYC premiere of the Sex and the City movie. She looked very chic in a white blazer and black pants!

Image details: New Line Cinema Premieres "Sex And The City" - Outside Arrivals served by picapp.com

More pictures below the jump!

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On Monday, Ashley Olsen attended a screening of the documentary Everything at Once in NYC. She wore a simple scoop neck tee and black skirt and looked like she was enjoying herself! She often smiled freely for the camera and posed with several other people on the carpet outside.

See the images here.

I didn’t know Ashley Olsen has a stylist! But she does! In Style caught Ash sneaking into the Miss Sixty show (Ash was avoiding the photographers) with “her stylist, Cristina Ehrlich.”

I did some digging and found this info from a 2006 article from Style it Online:

Christina Ehrlich, along with design partner Estee Stanley, have dressed the likes of Mandy Moore, the Olsen Twins, Jessica Biel, Penelope Cruz, Demi Moore and Salma Hayek. Their clothing and lingerie line, Miss Davenporte, can range from $200 to $1,000. The lingerie line includes shapewear kits and are available at Fredericks of Hollywood.

I wonder how often Ashley works with her! Christina now styles Nicole Richie too!

More pictures of Ashley at the Miss Sixty show below!

Source: Celeb-city

Mary-Kate and Ashley Fan found these gorgeous polaroids of Ashley Olsen backstage at the Miss Sixty Fashion Show.

I think Ash look fantastic in these photos!

Click on the images for bigger.

images courtesy mary-kate and ashley fan