Most Outrageous Faceoffs

From the dresses you can't believe were worn twice – to the stars you'd never imagine having the same taste! – see the most amazing match-ups of the year

01 of 20

ANNE VS. MARIAH

ANNE VS. MARIAH
Richie Buxo/Splash News Online; Jun Sato/WireImage

Hathaway flaunted her figure in her second-skin Hervé Léger by Max Azria dress at NBC studios in N.Y.C., while Carey topped off her red-hot mini with a trench for her arrival at the Narita airport in Japan.

02 of 20

DEMI VS. HEATHER

DEMI VS. HEATHER
Jackson Lee/Splash News Online; Andrew Shawaf/Pacific Coast News

The ageless star hit an N.Y.C. party last year in her Zac Posen dress, while the Melrose Place actress returns home, shooting a scene as Amanda Woodward in the ruffled cobalt dress.

03 of 20

KIM VS. KOURTNEY

KIM VS. KOURTNEY
Lester Cohen/WireImage; MJT/AdMedia

Sister battle! Kim wore her HampM white sheath to a magazine party in L.A. in May, while her pregnant sibling Kourtney wore the stretchy dress to Kim's birthday party in Las Vegas this past weekend.

04 of 20

BLAKE VS. KHLOE

BLAKE VS. KHLOE
Christopher Peterson/BuzzFoto/FilmMagic; Flynet

The Gossip Girl star got into

character as Serena van der Woodsen in her Alexander Wang dress, while the

newlywed hit a party in L.A.

in her draped purple mini.

05 of 20

CARRIE VS. CARMEN

CARRIE VS. CARMEN
Jason Merritt/Getty; Denise Truscello/WireImage

The singer returned to American

Idol in her pink Jenny Packham dress, while the sexy starlet heated up Las

Vegas in her beaded pink frock.

06 of 20

TAYLOR VS. LISA

TAYLOR VS. LISA
Jon Kopaloff/FilmMagic; Michael Simon/Startraks

The country star attended the CNN Heroes gala in her Trina Turk dress, while

the actress promoted her exercise video in the black-and-white frock.

07 of 20

AGYNESS VS. M.I.A.

AGYNESS VS. M.I.A.
Ramey; Steve Granitz/WireImage

The British supermodel dared to bare in her House of Holland sheer dress for

the designer's afterparty in London, while the pregnant rapper

hit the Grammy stage (on her due date!) in her strategically dotted dress.

08 of 20

MADONNA VS. WHITNEY

MADONNA VS. WHITNEY
INF; Richard Young/Startraks

One dress, one night, two divas! Madonna wore her Dolce amp

Gabbana dress while partying with the designers at their Gold restaurant in

Milan, while Houston celebrated her album release in her leopard-print

sheath.

09 of 20

JESSICA VS. JENNIFER

JESSICA VS. JENNIFER
Nate Jones/Pedro Andrade/Pacific Coast News; PPNY/GSNY/Splash News Online

Biel hit the streets of Los Angeles in her Diane von

Furstenberg dress back in January, while Garner was chic in N.Y.C. this spring in her navy shirtdress.

10 of 20

SHAKIRA VS. PINK

SHAKIRA VS. PINK
Peter Kramer/AP; Kevin Mazur/WireImage

Same dress, same awards show! The singers both turned up at this weekend's MTV Video Music Awards in their studded Balmain mini dress.

11 of 20

PARIS VS. DEMI

PARIS VS. DEMI
Ray Tamarra/Getty; John White/INF

The heiress hit The Late Show with

David Letterman in her Alexander Wang dress, while the Disney star attended the Toronto premiere of Princess Protection

Program in her two-tone minidress.

12 of 20

KATE VS. CHLOE

KATE VS. CHLOE
Phil McCarten/AP; Gene Young/Splash News Online

Bosworth added a simple white tank to her Chloé short suit for a

BlackBerry party in October, while Sevigny gave her scalloped suit a vintage

feel with a straw topper and buttoned-up blouse for a polo match in New York

this week.

13 of 20

SHAWN VS. ISLA

SHAWN VS. ISLA
Bill Davila/Startraks; Jenna Lynn/WireImage

The Dancing with the Stars champ cha-cha-cha-ed down the CMT

Awards red carpet in her Elizabeth amp James dress, while the actress posed

for photos at a CRUDE screening in her strapless floral

maxidress.

14 of 20

EVA VS. LINDSAY

EVA VS. LINDSAY
Johnny Louis/Wenn; Gary Gershoff/WireImage

Longoria Parker sizzled at a charity event earlier this month in Miami in her Matthew Williamson dress, while Lohan helped the British designer celebrate his new N.Y.C. store in the beaded coral frock.

15 of 20

NICOLE VS. JENNIFER

NICOLE VS. JENNIFER
Carlos Costas/Pacific Coast News; Jackson Lee/Splash News Online

The Australia star promoted the film last November in her L'Wren Scott dress, while the singer-actress celebrated Topshop's N.Y.C. opening in her white strapless one.

16 of 20

HEIDI VS. EMMA

HEIDI VS. EMMA
Fame; Splash News Online

The supermodel worked her Atelier Versace dress during an L.A. photo shoot,

while the young actress vamped at the Met Gala in her molded minidress.

17 of 20

VICTORIA VS. MARY

VICTORIA VS. MARY
Neil Mockford/FilmMagic; Evan Agostini

The designer modeled her own dress from her eponymous dress collection while in London, while the singer wore the gray peplum dress to the Toronto Film Festival.

18 of 20

SALMA VS. AMANDA

SALMA VS. AMANDA
Andrew H. Walker/Getty; Frederick M. Brown/Getty

The sultry star adds a retro touch to her Stella McCartney gown with a beaded headcap, while the Mamma Mia star pairs her shimmering champagne gown with H. Stern jewels for this weekend's Golden Globes.

19 of 20

JESSICA VS. BEYONCE VS. ELIZA

JESSICA VS. BEYONCE VS. ELIZA
Kevin Mazur/WireImage; Jason LaVeris/FilmMagic

One dress, three stars, one week! "Sasha Fierce" hit the stage in

London in her trompe l'oeil dress over leggings, while the singer promoted her fragrance in

Chicago in her Nicole Miller dress. The actress heated up the

red carpet in L.A. in her sparkling mini with cuffed boots.

20 of 20

MANDY VS. CINDY

MANDY VS. CINDY
Jon Kopaloff/FilmMagic; Flynet

The star showed off a sexier side in her laced-up Preen dress at an art opening in L.A., while the supermodel heated up a charity event in London in her cut-out dress.

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