It's just one week to go till the Oscars, so it's time to brush up on your red carpet IQ. We've summed up the top 50 Oscar dresses ever, so now it's time to take a look at the best actress winners. Have you ever wondered if there is a formula to a winning Oscar dress? Which designer has bagged the most wins? Which colour screams success? Well we've done all the hard work for you, and collated all the best dressed actresses and best supporting actresses since 2000. Plus our friends over at Mediarun Digital have made an ah-mazing infographic, showing the dresses worn by every single best actress winner.
Last year Jennifer Lawrence picked up the Best Actress Award in her mahoosive, rather bridal, Dior Couture frock. She might not be able to actually pronounce Haute Couture or walk up a few steps in a gown, but she looked FAB. That's why we love her. She's not the first Best Actress to have worn Christian Dior, as back in 2006 Reese Witherspoon accepted the award for Walk the Line in Vintage Christian Dior.
Versace has been worn most on the red carpet at the Oscars, as Catherine Zeta-Jones wore Versace when she picked up Best Supporting Actress in 2003 and Angelina Jolie wore the label when she was crowned Best Supporting Actress in 2000.
Jennifer Lawrence in Dior Haute Couture
Valentino is of course a popular winner's choice, and although Anne Hathaway shocked and wore Prada instead this year, he has dressed a spectacular number of Best Actresses as Cate Blanchett, Sophia Loren, Jessica Lange, Julia Roberts and Elizabeth Taylor all wore Valentino.
Valentino said that dressing Julia Roberts when she collected her Oscar for Erin Brockovich was the highlight of his career. 'I have dressed so many people but I have to be sincere. The person that made me feel so very, very happy was Julia Roberts. When she got the Academy Award for Erin Brockovich I watched it on television and really I was so excited that she appeared in my dress,' the designer gushed.
As for the accessories it seems a Chopard is a lucky charm, as in 2004 Charlize Theron wore Chopard to accept her Best Actress Oscar for Monster and then for nine consecutive years an Oscar winner wore Chopard.
Can you work out an Oscar winning fashion formula? Take a look through the gallery below to see the previous Best Actress and Best Supporting Actress winners. Then check out the amazing inforgraphic above...