The highlight of Barbara Walters' 10 Most Fascinating special tonight—naturally—was her interview with the Jersey Shore cast, which was almost as dirty as the show itself! Inside, watch Walters and the gang talk Grenades, Smushing, GTL and more.

We already know how Oprah Winfrey feels about BFF Gayle King, but what about longtime partner Stedman Graham? They're still together! In fact, when Barbara Walters told Winfrey tonight that many people don't know that, she was shocked. Watch inside.