Rihanna
Rihanna looked absolutely ravishing at the 2013 Grammy Awards in a crimson Azzedine Alaia gown.
Katy Perry
The singer stood out at the 2013 MusiCares Person Of The Year Gala in a sleek orange Alexander McQueen dress with a gorgeous bejeweled neckline.
Jessica Chastain
The ravishing redhead exuded a ladylike charm in a darling floral Erdem cocktail dress at the 85th Academy Awards Nominations Luncheon.
Naomi Watts
The blonde beauty looked absolutely divine in a strapless Zac posen gown with a fun and feminine floral print at the 11th Annual Visual Effects Society Awards.
Ashley Greene
At the amFar New York gala, the Twilight stunned us in an elegant white Giambattista Valli gown. Her delicate gold leaf belt and eye-catching Lorraine Schwartz earrings completed her refined style.
Crystal Renn
The stunning model turned up the va-va-voom volume in a gorgeous Zac Posen gown with a dramatic fishtail at the amFar New York gala.
Beyoncé
In addition to proving she could indeed sing the National Anthem, the crooner made a sultry style statement at the Pepsi Super Bowl XLVII Halftime Show Press Conference in a hot leather Olcay Gulsen mini-dress with an eye-catching open back. She finished off her fierce look with Jimmy Choo Barb pumps and lovely curls styled in a sweeping side part.
Cate Blanchett
The Brit beauty dazzled in a gorgeous Armani Privé gown covered in rich red sequins at the AACTA Awards in Australia. The floor-length gown from the designer's 2009 spring collection hugs her in all the right places and shows off the actress' flawless shape with one seriously sexy plunging neckline.
We love the fact that the Silver Linings Playbook star embraced a bold color with this attention-grabbing Peplum Pucci in a lively yellow hue for an appearance on Jimmy Kimmel Live.
Kate Mara
At the New York premiere of House of Cards, the star stood out on the red carpet in a sweetly feminine metallic lace Dolce & Gabbana cocktail dress complete with dainty ruffle trim. Her pretty Brian Atwood Aida platform sandals and sparkling Judith Leiber clutch finished off her adorably girly look.
Taylor Swift
The cute crooner went for a sexy look in a crystal-embroidered Kaufmanfranco dress with a plunging illusion neckline at the 40 Principales Music Awards in Madrid. Her Louboutin Dufoura heels added edge to her look.
Emily Blunt
The Brit beauty hit the 2013 London Film Critics Circle Film Awards in a sleek Alexander McQueen peplum dress. She added visual interest to her look with a double-buckle waist-cinching belt.
Michelle Obama
The fashionable first lady took our breath away in a ruby red chiffon and velvet gown by Jason Wu at the 2013 inaugural ball.

