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BEST: Julia Roberts in Valentino (2001)

Roberts's acceptance speech after winning the Oscar for Best Actress for her role in "Erin Brockovich" is almost as memorable as her black and white vintage Valentino gown. The look was an instant red carpet favourite that was pulled for the star from the designer's archives from 1992.

The best and worst Oscar dresses of all time

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The final preparations are underway for the 92nd Academy Awards, airing Sunday, Feb. 9. For the second year in a row, there will be no host. Instead, Hollywood’s most prestigious awards will be handed out by some of the biggest names in film, including Tom Hanks, Keanu Reeves and Natalie Portman.

ALSO SEE: From McQueen to Momoa: These are the most stylish men in Oscars history

Before the stars arrive to usher in a new decade of red carpet magic, we’re looking back at some of the best and worst fashion moments in Oscars history.

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