In pictures: Best Dressed on the Oscars red carpet

Hollywood celebrities hit the red carpet Sunday for the Oscars at the Dolby Theatre -- the climax of a long, eventful awards season that could yield some big surprises.
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Linda Cardellini attends the 91st Annual Academy Awards at Hollywood and Highland on February 24, 2019 in Hollywood, California.
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Lady Gaga attends the 91st Annual Academy Awards at Hollywood and Highland on February 24, 2019 in Hollywood, California.
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Sarah Paulson attends the 91st Annual Academy Awards at Hollywood and Highland on February 24, 2019 in Hollywood, California.
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Best Actress nominee for 'Roma' Yalitza Aparicio (L) and Best Supporting Actress nominee for 'Roma' Marina de Tavira (R) arrive for the 91st Annual Academy Awards at the Dolby Theatre in Hollywood, California on February 24, 2019.
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Brie Larson attends the 91st Annual Academy Awards at Hollywood and Highland on February 24, 2019 in Hollywood, California.
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Jennifer Lopez attends the 91st Annual Academy Awards at Hollywood and Highland on February 24, 2019 in Hollywood, California.
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Regina King attends the 91st Annual Academy Awards at Hollywood and Highland on February 24, 2019 in Hollywood, California.
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Emma Stone attends the 91st Annual Academy Awards at Hollywood and Highland on February 24, 2019 in Hollywood, California.
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Angela Bassett attends the 91st Annual Academy Awards at Hollywood and Highland on February 24, 2019 in Hollywood, California.
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Kacey Musgraves attends the 91st Annual Academy Awards at Hollywood and Highland on February 24, 2019 in Hollywood, California.
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Laura Harrier attends the 91st Annual Academy Awards at Hollywood and Highland on February 24, 2019 in Hollywood, California.
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Rachel Weisz attends the 91st Annual Academy Awards at Hollywood and Highland on February 24, 2019 in Hollywood, California.
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Gemma Chan attends the 91st Annual Academy Awards at Hollywood and Highland on February 24, 2019 in Hollywood, California.
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(L-R) Jason Momoa and Lisa Bonet attend the 91st Annual Academy Awards at Hollywood and Highland on February 24, 2019 in Hollywood, California.
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Dame Helen Mirren attends the 91st Annual Academy Awards at Hollywood and Highland on February 24, 2019 in Hollywood, California.
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Elsie Fisher attends the 91st Annual Academy Awards at Hollywood and Highland on February 24, 2019 in Hollywood, California.