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Zoe Saldana hit the red carpet at tonight’s Academy Awards in a gorgeous and on-trend pale gray and black gown by up and coming French haute couture designer Alexis Mabille. The 35-year-old is a fairly recent inductee into the über-elite group of haute couture creators, of which there are fewer than 20 in the world (think: Chanel, Dior, Givenchy, and Jean Paul Gaultier). He launched his house in 2005 with the help of his family, and with a unique twist: the collection was unisex, containing designs that aimed to flatter both men and women alike. We certainly think it flattered Saldana —congrats to the designer on his big Oscars debut!

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Of all the stars who walked the red carpet at tonight’s Oscars, two in particular stood out to InStyle editor-at-large Hal Rubenstein: Reese Witherspoon and Helen Hunt. And while Witherspoon is wearing a navy gown (and jewelry) by high fashion designer Louis Vuitton and Hunt is in a dress by mass retailer H&M, their styles share a common bond. “To show off a woman’s form with great simplicity is such a great way for a woman to dress,” Rubenstein said of the two looks. When Rubenstein saw Witherspoon on the carpet, he noted: “This has such a clean, simple elegance. This dress shows that you don’t need a lot of flash. It fits perfectly. No big jewelry. Nothing in the way.” Less really is more!

Plus, see all the Oscars 2013 red carpet looks!

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All eyes are on nominee Anne Hathaway tonight. We’ve been following her dreamy red carpet looks this award season and of course, that perfect pixie. Her hairstylist Adir Abergel told us his inspiration behind tonight’s more voluminous version was 1950s elegance. “I wanted to keep it simple, classic and for it to have timeless glamour,” he told InStyle.com. He also wanted a bit more texture tonight so he used Frederic Fekkai Coif Bouffant ($25 at nordstrom.com)—sweeping the product root to end, emphasizing the front—which he says is critical for short hairstyles. “This gave it enough hold to last all night,” he said. Then he brushed her strands through with a Denman brush ($13 at amazon.com) and finished off with Fekkai Coiff Nonchalant Piecing & Forming Wax ($25 at fekkai.com). “I messed it up a little,” he said. Abergel had another short-haired fashion icon in mind when he created the style: Princess Diana!

Plus, see what all the stars are wearing tonight!