Who wears it best?

• 21 Nicole Kidman or Rachel McAdams?
  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...

• 22 Catherine Zeta Jones or Sarah Hyland?
  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...

• 23 Alesha Dixon or Solange Knowles?
  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...

• 24 Victoria Beckham or Celine Buckens?
  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...

• 25 Olivia Wilde or Georgina Chapman?
  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...

• 26 Lady Gaga or Anna Faris?
  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...

• 27 Taylor Swfit or Kylie Jenner?
  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...

• 28 Heidi Range or Ana Araujo?
  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...

• 29 Miranda Kerr or Rachel Bilson?
  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...

• 30 The Duchess of Cambridge or Amy Childs?
  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...

• 31 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...

• 32 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...

• 33 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...

• 34 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...

• 35 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...

• 36 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...

• 37 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...

• 38 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...

• 39 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...

• 40 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...