Each night this week, NBC Nightly News is highlighting the work of a celebrity and how they are making a difference. The series puts the spotlight on musicians, actors and comedians -- including Sally Field, Ben Affleck, Eva Longoria, Usher and Will Ferrell -- and the charities close to their hearts.
The first segment explores Sally Field's work with Vital Voices, an organization promoting women's rights by supporting female leaders around the world.
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