Oprah Winfrey interviewed at "The David Rubenstein Show: Peer to Peer Conversations." Winfrey, dubbed the "Queen of All Media", has been ranked the richest African-American of the 20th century, the greatest black philanthropist in American history, and is currently North America's first and only multi-billionaire black person.

Oprah Winfrey interviewed at "The David Rubenstein Show: Peer to Peer Conversations." Winfrey, dubbed the "Queen of All Media", has been ranked the richest African-American of the 20th century, the greatest black philanthropist in American history, and is currently North America's first and only multi-billionaire black person.