41
Diane Kruger's black Emilio Pucci halter gown
Diane Kruger at the 2011 Unicef Ball in Beverly Hills
42
Eva Herzigova or Jennifer Lopez?
It's every woman's nightmare. Debuting your new dress at a glitzy party only to find that a fellow fashionista has picked exactly the same outfit to wear for the evening.
With more and more stars stepping...
43
Olivia Wilde's Lanvin top and Marc Jacobs skirt
Olivia Wilde launching four new Revlon eye products in New York
44
Rihanna or Emma Watson?
It's every woman's nightmare. Debuting your new dress at a glitzy party only to find that a fellow fashionista has picked exactly the same outfit to wear for the evening.
With more and more stars stepping...
45
Jools Oliver or Lisa Snowdon?
It's every woman's nightmare. Debuting your new dress at a glitzy party only to find that a fellow fashionista has picked exactly the same outfit to wear for the evening.
With more and more stars stepping...
46
Alessandra Ambrosio or Zoe Saldana?
It's every woman's nightmare. Debuting your new dress at a glitzy party only to find that a fellow fashionista has picked exactly the same outfit to wear for the evening.
With more and more stars stepping...
47
Kate Moss' cream gown with crochet overlay
Kate Moss at the British Fashion Awards in London
48
Eva Herzigova or Chloe Moretz?
It's every woman's nightmare. Debuting your new dress at a glitzy party only to find that a fellow fashionista has picked exactly the same outfit to wear for the evening.
With more and more stars stepping...
49
Jessica Szohr's Marchesa full-sleeve mini dress
Jessica Szohr attends the 39th International Emmy Awards in New York
50
Kim Cattrall or Chelsea Handler?
It's every woman's nightmare. Debuting your new dress at a glitzy party only to find that a fellow fashionista has picked exactly the same outfit to wear for the evening.
With more and more stars stepping...
51
Blake Lively's aquamarine embroidered Marchesa dress
Blake Lively attends the Gossip Girl 100 episode celebration in New York
52
Joan Smalls or Emma Stone?
It's every woman's nightmare. Debuting your new dress at a glitzy party only to find that a fellow fashionista has picked exactly the same outfit to wear for the evening.
With more and more stars stepping...
53
Demi Moore or Caroline Sieber?
It's every woman's nightmare. Debuting your new dress at a glitzy party only to find that a fellow fashionista has picked exactly the same outfit to wear for the evening.
With more and more stars stepping...
54
Eva Longoria or Tamara Ecclestone?
It's every woman's nightmare. Debuting your new dress at a glitzy party only to find that a fellow fashionista has picked exactly the same outfit to wear for the evening.
With more and more stars stepping...
55
Sarah Jessica Parker or Myleene Klass?
It's every woman's nightmare. Debuting your new dress at a glitzy party only to find that a fellow fashionista has picked exactly the same outfit to wear for the evening.
With more and more stars stepping...
56
Holly Valance or Jennifer Lopez?
It's every woman's nightmare. Debuting your new dress at a glitzy party only to find that a fellow fashionista has picked exactly the same outfit to wear for the evening.
With more and more stars stepping...
57
Anja Rubik or Amber Le Bon?
It's every woman's nightmare. Debuting your new dress at a glitzy party only to find that a fellow fashionista has picked exactly the same outfit to wear for the evening.
With more and more stars stepping...
58
Model making: Vote for the best new face of 2011
The experienced set had a strong showing, with the likes of Kate Moss, Naomi Campbell, Karolina Kurkova and Miranda Kerr bringing their star power to the world's catwalks.
But it was also a brilliant...
59
Rose McGowan or Chloe Delevigne?
It's every woman's nightmare. Debuting your new dress at a glitzy party only to find that a fellow fashionista has picked exactly the same outfit to wear for the evening.
With more and more stars stepping...
60
Mena Suvari's festive Tibi halter frock
Mena Suvari at the premiere of A Very Harold & Kumar 3D Christmas in Hollywood