Is there nothing Oprah can't do?

Daytime talk show queen Oprah Winfrey (search), who's already the richest woman in TV, with the top-rated daytime talk show, is now being honored by the United Nations with its Global Leadership Award.

Winfrey will receive her award, along with fellow winners Joan Ganz Cooney and Peter Peterson, late next month at a posh ceremony at the Waldorf.

The theme of the evening is "initiatives in education," and Winfrey will be feted for "the leadership she has shown" in building schools in South Africa (search) and in funding the education of children orphaned by HIV/AIDS.

In December 2002, Winfrey — as part of her Oprah Winfrey Foundation — launched "Christmas Kindness South Africa," in which she visited orphanages and rural schools, giving the children there clothing, food, shoes, school supplies, books and toys.

Winfrey also announced a partnership with South Africa's Ministry of Education to build a leadership school for girls called The Oprah Winfrey Leadership Academy for Girls South Africa, which is scheduled to open in 2007.

Winfrey recently extended her contract to continue hosting "The Oprah Winfrey Show" through 2011, marking her 25th anniversary on the show.

Ganz Cooney, an educational TV programming pioneer who helped create "Sesame Street," (search) will be honored for her role in educational TV.

U.N. Secretary-General Kofi Annan (search) will be the honored guest at the dinner, which takes place Sept. 30.