Romantic (and sexy!) dresses with long, sheer sleeves ruled the red carpet once again this week. Floral prints and feminine updos also had their moment. Peep Celebs.com’s top 5 best-dressed celebs of the week to find who wore what and to wear.

5. America Ferrera

Wow, we’ve never seen America Ferrera look so beautiful! The actress absolutely wowed at the premiere of her latest film End of Watch on Monday. She donned a pretty, teal Rachel Roy peplum dress with Brian Atwood heels and Lorraine Schwartz jewels. A sophisticated, side-swept ‘do and bright lipstick completed her look.

4. Anne Hathaway

Anne Hathaway looked like she had stepped straight out of an enchanted forest at the 2012 New York City Ballet Fall Gala held at the David H. Koch Theater on Thursday. She wore a to-die-for, floral Valentino Haute Couture floor length gown paired with a Roger Vivier clutch and Kwait earrings.

3. Nicole Richie

Ow, ow! Actress Nicole Richie was definitely one hot mama at the 2012 ALMA Awards last Sunday. She showed off her svelte figure in a daring, black Mathieu Mirano gown with sheer cutouts and leather paillettes. As far as accessories go, she wore YSL heels, a House of Harlow clutch and Meus jewelry. A tight bun and seriously smoky eye makeup added the finishing touches.

2. Zoe Saldana

Also at the ALMA Awards, actress Zoe Saldana turned heads in a girly pink Gucci gown with a plunging neckline and ruffled sleeves. Paired with elegant Irene Neuwirth drop earrings and Brian Atwood heels, it’s the perfect color choice for the celebrity, particularly considering her caramel skin and dark eye makeup.

1. Olivia Palermo

Never one to disappoint in the style department, socialite and former reality TV star Olivia Palermo proved she’s still got it in white Valentino at the Annual Brazil Foundation Gala Party in NYC on Wednesday. Her romantic gown, which featured a sheer skirt, bell sleeves and ladylike floral embellishments, looked stunning styled with a chic copper clutch, sleek bun and barely-there makeup.