* Approximately 30,000 guests have appeared on the show, including U.S. presidents Jimmy Carter, George H.W. Bush, Bill Clinton, George W. Bush and Barack Obama.

    * Singer Celine Dion (27 times) and comedian Chris Rock (26 times) are the celebrities who have made the most appearances.

    * November 1986 — Winfrey revealed she was sexually abused and raped by a relative at age 9.

    * November 1988 — Winfrey shows off her new, slimmer figure and brings on a wagon holding 67 pounds of fat representing her weight loss.

    * February 1993 — Michael Jackson, in first TV interview for 14 years, said he had skin condition vitiligo, talked of physical abuse from his father and said he often cried out of loneliness.

    * April 1996 — Comments by a guest about mad cow disease prompt Winfrey to say she won’t eat hamburgers, triggering a drop in beef prices and a lawsuit against her by Texas cattlemen. A jury later sides with Winfrey.

    * November 1997 — Comedian Ellen DeGeneres talks about coming out as a lesbian.

    * May 2005 — Tom Cruise jumps on Winfrey’s couch, proclaiming his love for new girlfriend Katie Holmes.

    * January 2006 — Winfrey scolds author James Frey, a recent Book Club pick, for faking parts of his memoir “A Million Little Pieces.”

    * September 2009 — Former child star Mackenzie Philips reveals incestuous relationship with her father, “The Mamas and the Papas” singer John Phillips.

    * June 2010 — Britain’s Duchess of York, Sarah Ferguson, publicly apologizes for trying to sell access to Prince Andrew.

    * January 2011 — Winfrey holds reunion with her newly discovered half sister.

    * May 23-24, 2011 — Tom Cruise, Aretha Franklin, Beyonce, Michael Jordan, Madonna, Usher, Will Smith, Tom Hanks, Jerry Seinfeld, Stevie Wonder, Jamie Fox, Halle Berry and many other celebrities bid farewell to Winfrey in surprise show. (SD-Agencies)