This Week's Top 10 Know How to Pull Off an Ultrafeminine Look

Dianna showed up at the premiere of Bare in a red-hot, full-skirted Rosie Assoulin dress, which definitely gave us retro glamour vibes.

It was hard to choose one look from Blake's fashion-filled week, but this off-the-shoulder Zuhair Murad dress, along with the addition of pearls and white pumps, definitely stood out among the rest.

Shay looked sweet and Spring-ready in this baby-blue number at the Net-a-Porter.com and Charlotte Tilbury party. She finished off her outfit with beige accessories, letting the dress steal the show.

We're convinced Kate Mara can pull off anything, from colorful shifts to sheer, ruffled minidresses like this cream-colored Valentino.

How could we not include this Oscar de la Renta fit-and-flare in our roundup? It looks as if it was made for the petite actress, who wore it to the LA premiere of See You in Valhalla.

Even though Emma ended up wearing layered Dior pants — or skants, rather — to the Time 100 Gala, her style was still very ladylike and polished.

The sequined dress, the short hair — we feel like Lena could be the leader of a glam girl group in this outfit.

Scarlett somehow made this colorful Balmain maxi look both sophisticated and edgy at the Avengers: Age of Ultron premiere.

We never thought a striped shirt could look so elevated, but Diane made it work — and work well — pairing it with a slitted skirt at a Flaunt magazine party.

On anyone else, this ensemble might look old-fashioned, but Zendaya's Michael Kors dress seemed modern and fresh thanks to her silver choker and updo.