So Many Good Looks at One Event, We Can't Play Favorites!

When Reese Witherspoon decided to host an event for Stand Up to Cancer, she packed her guest list with a who's who of Hollywood. And while the stars were out for a good cause, they brought their beauty A-game. See all the looks from the night here.

Reese Witherspoon
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Reese Witherspoon

Jessica Alba
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Jessica Alba

Diane Kruger
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Diane Kruger

Selena Gomez
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Selena Gomez

Anne Hathaway
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Anne Hathaway

Heidi Klum
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Heidi Klum

Drew Barrymore
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Drew Barrymore

Christina Aguilera
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Christina Aguilera

Emma Roberts
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Emma Roberts

Lily Collins
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Lily Collins

Anna Kendrick
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Anna Kendrick