Mary-Kate Olsen

In pale hues that gave way to crimson and navy, the Olsens offered up a gorgeous take on refined minimalism for Spring 2013. Silk was the fabric choice, and it came gently tailored and romantically layered on languid silhouettes that felt slouchy and elegant all at once. The duo said that they were inspired by American folk, 18th-century Japanese artist Ito Jakuchu, and the English countryside, and even though the interpretation here was ever-so subtle, somehow it worked.

The fourth annual Fashion's Night Out is just days away! On Thursday, celebrities, editors, models, and more will gather around the country. Fashion's Night Out always brings a great celebrity turnout. Over the years, we've seen Gisele Bundchen stomping the runway, Halle Berry signing autographs, Charlize Theron sharing a laugh with Vogue editor Anna Wintour, and Mary-Kate and Ashley Olsen promoting their collections.

In honor of this year's bash — and the event's fourth birthday — we're taking a look back at some of the other fashionable celebs who have shown their support for the fashion industry. Click through to see the stars celebrate Fashion's Night Out.

Mary-Kate Olsen and her boyfriend, Olivier Sarkozy, stepped out of a townhouse in the East Village yesterday. The NYC home was purchased by Olivier for $6.25 million and is currently undergoing renovations. There are rumors that Olivier and Mary-Kate plan on moving into the property together once it's completed. They've reportedly been dating since May and after spending Memorial Day weekend as a duo, they also stepped out in June with Olivier's daughter. Mary-Kate may be planning to take a big step in her relationship, but she's also staying focused on her designing duties and will show her The Row collection during NY Fashion Week next month.

Mary-Kate Olsen has had a busy couple of days with her nearest and dearest. On Thursday, Mary-Kate and boyfriend Olivier Sarkozy had a meal in the West Village with his daughter. Mary-Kate, 26, has been seeing 46-year-old Olivier for a few months, and their relationship is reportedly going strong. After their meal, Olivier and Mary-Kate went on a walk with his daughter.

Last night, Mary-Kate and her sister Ashley Olsen met up with different guy friends for a meal. The sisters were together after a big milestone last week. Mary-Kate and Ashley turned 26, and we celebrated by looking at their transformation from child stars to fashion moguls.

Mary-Kate Olsen and Ashley Olsen turn 26 today! The girls began their careers sharing the role of Michelle Tanner on the hit series Full House in 1987, and there was no looking back. The Olsen sisters grew up in Hollywood and shared many memorable moments with the world. They made their big-screen debut in It Takes Two, but now they are better known for their career shift to designers with their hugely successful clothing line The Row.

In celebration of their milestone, take a look back at the priceless moments from Mary-Kate and Ashley's younger years.

Remember when you found out the adorable little girl from Full House was actually two adorable little girls? Well, if you told us 10 years ago that Michelle Tanner times two would grow up to be fashion designers, CFDA Award winners, and sought-after style setters, we'd probably roll our eyes and give you a Michelle-style "Oh, please!"

Mary-Kate and Ashley Olsen have not only grown into superstylish, totally talented women, but they're undeniably gorgeous, too. In editorials, they come across as wistful, wide-eyed beauties with a fierce sense of sisterhood, always exuding polish, gentility, and avant-garde glamour. We're celebrating Mary-Kate and Ashley's 26th birthday with a collection of their chicest editorials to date — and while we love them together, we do realize that they are their own separate entities, so we've made sure to include some solo shots, too. Click through to see them all now.

In the same week that they won the CFDA Award for women's wear, Mary-Kate and Ashley Olsen delivered an endlessly elegant Resort 2013 collection for The Row. The offering features a strong assortment of outerwear, from a wool coat in lavender to fur-lined parkas and blue vinyl-treated trenches. But there's no shortage of pieces ripe for warmer, sunnier climes, like a gauzy cropped tank tops, sheer shirts, and skirts of varying hem heights. The designers said they looked at pictures of fisherman when they were designing the collection, but other than a cozy turtleneck paired with an elaborately embroidered cream coat — creating the effect of an oversized fisherman's sweater — the nautical influence wasn't translated too literally. Instead, the fluidity of the sea is captured in easy fabrics and pared-down tailoring.