Oprah Tells All About Her Interviews with Whitney Houston & Michael Jackson

ET's Kevin Frazier sat down with Oprah Winfrey, who opens up for the first time about the death of Michael Jackson, and talks about her interview with Whitney Houston, which she calls her best yet.

In 1993, Oprah interviewed the King of Pop. "The Oprah Winfrey Show" will re-air their conversation on September 16. "We actually had to get [Michael's] mother's permission to use the tape," she says.

"That was the most-watched interview of its time ... a hundred million people around the world," she tells Kevin.