1 of 16
AMANDA VS. PARIS
The Hairspray actress heated up the Hollywood Awards in her Alice + Olivia minidress, while the budding actress braved the cold at Sundance in the navy version of the beaded dress.
2 of 16
KATHERINE VS. MENA
The 27 Dresses star covered up her red Zac Posen dress with her Alice + Olivia wrap coat outside The Late Show, while the Mysteries of Pittsburgh actress layered with her creamy coat at Sundance.
3 of 16
HEIDI VS. BROOKE
The Hills vixen sizzled in her Alexia Admor dress at the Cloverfield premiere in Los Angeles, while a few weeks later the Welcome Home Roscoe Jenkins actress turned up to that film’s premiere in her draped red dress.
4 of 16
KRISTIN VS. CARIDEE
The Laguna Beach star turned up the heat in her red Bebe dress at a Make-A-Wish event in L.A., while the America’s Next Top Model winner strutted her seamed strapless dress at a club opening in Las Vegas.
5 of 16
EMMY VS. MILEY
The actress was demure in her Notte by Marchesa dress at a book party in Los Angeles, while the singer performed in her white and silver frock at Disneyland.
6 of 16
MOLLY VS. PARIS
The Las Vegas star hit the Movie Rocks event in L.A. in her BCBGMAXAZRIA gown, while the heiress promoted her perfume in Miami in the same flowing dress a few days later!
7 of 16
CATHERINE VS. VICTORIA
The Oscar winner shone at The Late Show with David Letterman in her gold Hervé Légér dress in July, while the Playmate showed off her famous curves in her gold minidress at the Baby Phat afterparty this week.
8 of 16
MELISSA VS. LAUREN
The Mr. Woodcock actress turned up at a party for Foley & Corinna in their zebra dress back in July, while The Hills star partied before the Super Bowl in her asymmetrical sequined dress this weekend.
Foley & Corinna Zebra Tank Dress, $495 at shopbop.com
9 of 16
HAYDEN VS. DITA
The Heroes actress glittered in her Monique Lhuillier dress in Paris back in September, while the burlesque star feted the designer in her gilded frock in January.
10 of 16
RACHEL VS. VANESSA
The Jumpers actress won raves for her Abaete dress back in November, while the Run’s House star was equally chic in hers during Fashion Week.
11 of 16
CHLOE VS. DIANE
Fashionista faceoff! The always-quirky actress pairs her Lanvin tank with a short skirt at an N.Y.C. lunch for the line, while the National Treasure star pairs her face-printed tee with cropped pants at the Berlin film festival.
12 of 16
REBECCA VS. EVA
McSteamy’s wife is elegant in her white Monique Lhuillier dress at a Women’s Health party in L.A., while the Over Her Dead Body star sizzles in her beaded minidress while out on the town in London.
13 of 16
CARRIE VS. HEIDI
The singer rang in the new year in Times Square in her Elizabeth and James – the Olsen twins’ line! – while the Project Runway host wore her sequined tunic over jeans a month later in N.Y.C.
14 of 16
NICKY VS. HILARY
The heiress hit the beaches of Hawaii in her Nikka dress at Christmas, while the actress took to Rodeo Drive in her scarf print frock this week.
15 of 16
KEIRA VS. LIL MAMA
The Atonement star glammed it up at the Venice Film Festival in her Chanel dress, while the “Lip Gloss” rapper added the matching shrug to her two-tone gown at a pre-Grammy party.
16 of 16
KELLY VS. MARIA
Osbourne shows off her slim new figure in her Karta minidress at the launch of the Fiat 500 in London, while Menounos shows off her tan in her short jeweled dress at a Victoria’s Secret party at the Super Bowl.