1 of 25
PARIS VS. VANESSA
The heiress showed her star power at the Late Show with David Letterman in her Tracy Reese dress, while the former TRL host celebrated the show’s finale in her celestial-print strapless a few weeks later.
2 of 25
ASHLEY VS. LEONA
The High School Musical 3 star dazzled in her Jenny Packham dress at the film’s Melbourne premiere, while the British singer performed at the American Music Awards in her black and silver beaded minidress.
3 of 25
HEIDI VS. CLAUDIA
Supermodel showdown! The Project Runway host hit the show’s Bryant Park finale in her Roland Mouret dress, while the German uber-model showed off her famous curves in her keyhole dark-green dress at the British Fashion Awards in November.
4 of 25
ELLE VS. PINK
The supermodel celebrated Marie Claire’s Prix de la Mode in 2007 in her Vivienne Westwood gown, while the singer glammed it up at the American Music Awards in her sparkling striped one.
5 of 25
ALICIA VS. KHLOE
The singer was the picture of boho cool in her Diane von Furstenberg maxidress at a pre-Grammys party, while the reality star danced the night away at Selena Gomez’s birthday party in her black-and-white dotted dress.
6 of 25
7 of 25
MILEY VS. KELLY
The Disney star adds a bold necklace to her Theory dress for the Bolt premiere, while the reality star added a studded belt to her colorblocked dress while running errands in L.A. a few days later.
8 of 25
NATASHA VS. JESSICA
The actress turned up to a Chanel dinner in N.Y.C. in her Roberto Cavalli dress in April, while the new aunt performed on Good Morning America this fall in her floral striped dress.
9 of 25
JESSICA VS. TAYLOR
The Gossip Girl star spent a busy day in N.Y.C. in her French Connection skirt, while the country singer hit The Late Show with David Letterman in her full skirt.
10 of 25
BECKI VS. AMANDA
The Ugly Betty star stayed comfortable in her Marc Jacobs dress at the Fontainebleau hotel opening in Miami, while the next night, the Olympian took in the Victoria’s Secret fashion show in a belted version of the heart-print dress.
11 of 25
JESSICA VS. PARIS
The singer shows her true spots in her Diane von Furstenberg wrap dress while shopping in N.Y.C, while the reality star hits town in London in her pink leopard-print dress.
12 of 25
CHRISTINA VS. KRISTEN
The singer dared in her Jenny Packham minidress at a party in L.A., while a few weeks later the Heroes star paired her glittery frock with a hot pink purse at the Spike TV Awards.
13 of 25
LEIGHTON VS. MILLA
The Gossip Girl star celebrated her Gotham cover in her velvet Nina Ricci dress, while the actress turned up at the Nina Ricci show in Paris in her glittering gray dress the very next day.
14 of 25
RACHEL VS. KIM
The petite star was classic in her Chanel LBD at the line’s store opening in L.A., while the Lipstick Jungle actress was sophisticated in her tiered black dress at a party for the brand in N.Y.C.
15 of 25
FERGIE VS. LINDSAY
The singer hit Dolce & Gabbana’s show in Milan in February in her sheer-topped dress from the brand, while the actress donned her black minidress for Madonna’s directorial debut in N.Y.C. last week.
16 of 25
AUBREY VS. KOURTNEY
The singer paired her Foley + Corinna dress with a glittering headband for a fashion party in N.Y.C., while the reality star celebrated her sister Kim’s birthday in her ombré fringe dress in Las Vegas.
17 of 25
JESSICA VS. GWEN
Battle of the new moms! Alba went shopping with husband Cash Warren in her Juicy Couture maxidress on July 4, while Stefani headed to the beach this week in her ombré dress.
18 of 25
KIM VS. KRISTIN
Reality star showdown! Kardashian posed for photos in her yellow Black Halo dress in Monaco over the summer, while Cavallari brightened up the Max Payne premiere in her one-shouldered dress this past week.
19 of 25
JOY VS. CHRISTINA
The model turned actress showed off her slim shape in her Pucci gown at the Met Costume Institute Gala, while the singer paired the shorter version with leggings for a gala in London.
20 of 25
KIMBERLY VS. TAYLOR
The rock spawn heads out for a night on the town in London in her D&G dress, while the Gossip Girl star films a scene in character as Jenny Humphrey in her plaid dress.
21 of 25
ASHLEY VS. NICKY
The High School Musical 3 star paired her H&M mini with a black blazer for a visit to TRL, while the heiress kept her floral frock simple for the BlackBerry Bold launch in L.A.
22 of 25
CARMEN VS. BECKI
The sexy actress showed off her curves in her Diane von Furstenberg dress while promoting Disaster Movie, while the Ugly Betty star hit a party for the designer in N.Y.C. in her green sheath.
23 of 25
SHENAE VS. KOURTNEY
The 90210 actress turned up at the 2008 Teen Choice Awards in her Bebe romper, while the reality star glammed it up in Las Vegas in her lace one-piece.
24 of 25
ANA VS. PERREY
The Ugly Betty actress perched front row at Nanette Lepore’s February runway show in the designer’s dress, while the Entourage actress turned up at a fashion event in September in the embroidered frock.
25 of 25
ROSE VS. AMY
The Damages actress paired her Burberry Prorsum dress with a bold necklace for a charity event in N.Y.C., while a few days later, the Seventh Moon star kept it simple for the brand’s store opening in Beverly Hills in her beige dress.
We Wore What's Danielle Bernstein Launched Clothing at Bloomingdale's - Here's what We're Buying