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David M. Benett/Dave Benett/WireImage
2018 U.K. Premiere of A Star Is Born
The actress kept fans guessing on her fashion throughout the press tour for the movie, opting for an Elizabethan-inspired Alexander McQueen gown to launch the film in London.
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VALERIE MACON/AFP/Getty Images
2019 Golden Globes
The star paid homage to her predecessor Audrey Hepburn in a custom Valentino dress accessorized with glamorous Tiffany & Co. diamonds and colorful hair.
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Steve Granitz/WireImage
2019 Oscars
The actress went home a first-time Oscar winner after donning a strapless structural black gown by Alexander McQueen on the red carpet, paired with a dazzling 128.54 carat Tiffany diamond worth an estimated $30 million.