Maya Angelou helped honor three grass-roots groups from around the world for their work in improving the lives of women.

"If their stories teach us anything, it is that we will all win together or we will all lose together," Angelou said Tuesday of three women accepting prizes for their groups from the U.N. Development Fund for Women.The groups, based in Somalia, Peru and India, focus on different needs in their respective countries: peace, nutrition and women's rights.

Angelou is best known for her autobiography "I Know Why the Caged Bird Sings."