Barbara Walters interviews billionaire Lynn Tilton, who owns more companies than any woman in America, at her New Jersey home. Watch the full story on "20/20," Friday, Aug. 3, at a special time, 9 p.m. ET.

The size of Lynn Tilton's closet might rival the size of her portfolio of companies.

Tilton gives Barbara Walters a tour of her New Jersey estate.

Barbara Walters poses with John Paul DeJoria, the founder of Paul Mitchell Products, and his wife, Eloise DeJoria.

In addition to founding Paul Mitchell Products, John Paul DeJoria is also the founder of Patron Tequila. Here, DeJoria, his wife Eloise and Barbara Walters enjoy a tequila toast.

Barbara Walters interviews Cirque du Soleil founder Guy Laliberte during rehearsals for a new show in Montreal, for her special on billionaires, airing Friday, Aug. 3, at a special time, 9 p.m. ET. Laliberte began his career as a street performer and counts fire-breathing and stilt-walking as among his many talents.

Barbara Walters stands next to Guy Laliberte as she watches a jaw-dropping rehearsal of his latest Cirque du Soleil extravaganza: Michael Jackson: The Immortal World Tour.

Barbara Walters interviews Tony Hsieh, CEO of Zappos.com. The online shoe and clothing retailer generates more than $1 billion in gross annual sales.