SIENNA VS. NICOLE
At an afterparty for her London play As You Like It, Sienna Miller (left) wore a gold lamé Roberto Cavalli dress – the same one that Nicole Richie had sported to a Hollywood club. Who's more of a golden girl – the stage lover or The Simple Life-er?
NICKY VS. ANNE
During New York's Fashion Week, socialite (and accessories designer) Nicky Hilton (left) made the scene in the same Zac Posen cocktail dress that Princess Diaries star Anne Hathaway had donned for a charity event. Who's a better model for the hot designer – the heiress or the "royal"?
SERENA VS. ASHLEY
In New York City recently, tennis star Serena Williams (left) wore the same curve-hugging Luca Luca frock that Into the Blue star Ashley Scott stepped out in for her oceanic thriller's L.A. premiere. Who's more elegant – the sports diva or the deep-sea diver?
LINDSAY VS. HELENA
In New York City recently, Helena Christensen (right) wore the same Christian Dior peasant dress that Lindsay Lohan sported in West Hollywood last month. Who makes a better bohemian – the supermodel mom or the superstar teen?
MARISKA VS. EVA VS. SERENA
Triple threat! Mariska Hargitay, Eva Longoria and Serena Williams all hit a Marc Jacobs fashion show in a duchess silk top by the designer. Who's more runway-ready – the SVU star, the tennis champ or the Housewife?
LINDSAY VS. PETRA
Flashback! In New York City recently, Petra Nemcova (right) donned the same Dolce amp Gabbana chiffon minidress that Lindsay Lohan wore in London last year. Who's more of a doll – the Mean Girl or the model?
ALL TIED UP
After Paris Hilton topped her locks with a bowtie do earlier this year, Alias actress Melissa George felt similarly inspired at the recent Fashion Rocks concert in New York. Who has a bouncier bow – the heiress or the Aussie?
NICOLE VS. JENNY
In Hollywood on Sept. 19, Nicole Richie wore the same lacey blue Costume National dress that Jenny McCarthy was spotted in a day later at her Los Angeles film premiere. Who's racier in lace – the Simple Life star or the Dirty Love actress?
LINDSAY VS. AMERIE
Lindsay Lohan – at a video shoot for her single "Confessions of a Broken Heart" – adds a pouf of tulle underneath the same Monique Lhuillier gown that Touch singer Amerie wore to the MTV Video Music Awards. Which singer-actress shines brightest – the "Broken Heart"-ed blonde or the "Touch"-able brunette?
KELLY VS. ASHANTI
In London recently, Kelly Osbourne (left) stepped out in a ruffled L.A.M.B. halter – the same one Ashanti wore to the label's N.Y.C. fashion show last month. Who looks more money – the RampB princess or Ozzy's heir apparent?
JESSICA VS. GLORIA
At a Miami Beach fund-raiser recently, Gloria Estefan (right) wore a floor-length version of the Missoni dress Jessica Simpson donned this spring in Hollywood. Who makes a bigger splash – the Miami sound machine or the Texas siren?
MISCHA VS. JAIME
The O.C.'s Mischa Barton (left) dined at West Hollywood's Koi in the same velvet capelet that Jaime King wore days later at an L.A. party for her show Kitchen Confidential. Which FOX star looks yummier in velvet – Mischa or Jaime?
PARIS VS. EVA
Paris Hilton (left) hit the Las Vegas club scene in the same flirty halter dress that Eva Longoria wore to a Playboy Mansion party in July. Who looks prettier in polka dots – the newly single heiress or the Desperate Housewife?
JERRY VS. CATE
Jerry Hall (left) played hostess in Monaco recently wearing the same Grecian-inspired Alexander McQueen dress that Cate Blanchett slipped into for a summer film festival. Whose look gets the greenlight – the model's or the Oscar winner's?
KATE VS. HILARY
Kate Hudson (left) wore a black version of the same Stella McCartney cocktail dress that Hilary Duff later donned to her 18th birthday bash last month. Who makes more of a splash – Goldie's girl or Haylie's little sis?
ANGELINA VS. EMMY
At a recent New York City film screening, Angelina Jolie (left) wore the same sophisticated Ralph Lauren ensemble that actress Emmy Rossum sported several months ago. Who looks more chic in cap sleeves – Brad's girl or the Phantom's ingenue?
ELIZABETH VS. TERI
In London recently, Elizabeth Hurley wore the same blush-colored Versace frock that Desperate Housewives star Teri Hatcher donned earlier in New York. Who's prettier in pink – the British actress or the American "Housewife"?
MARIAH VS. RENEE
Mariah Carey (left) stepped out in a Pucci minidress in Paris last week – a skimpier version of the one Renee Zellweger wore to the Venice Film Festival. Who looks more retro chic – the "Butterfly" songstress or the Cinderella woman?