AP Photo - Dr. Conrad Murray, a physician for the late pop star Michael Jackson, appears at a child support hearing at Clark County Family Court, Monday, Nov. 16, 2009, in Las Vegas.

AP Photo - Dr. Conrad Murray, a physician for the late pop star Michael Jackson, appears at a child support hearing at Clark County Family Court, Monday, Nov. 16, 2009, in Las Vegas.

AP Photo - Michael Jackson's doctor, Conrad Murray, left, appears with attorneys Robert Blau, top, and David Chernoff appear at a child support hearing at Clark County Family Court Monday, Nov. 16, 2009 in Las Vegas.

AP Photo - Former Alaska Gov. Sarah Palin signs a copy her autobiography, "Going Rogue", at Joseph-Beth Booksellers in in Norwood, Ohio, on Nov. 20, 2009.

AP Photo - Former Alaska Gov. Sarah Palin signs a copy her autobiography, "Going Rogue", for a fan at Joseph-Beth Booksellers in in Norwood, Ohio, on Nov. 20, 2009.

AP Photo - Members of the audience from "The Oprah Winfrey Show" depart The Oprah Store after the broadcast at Harpo Studios Friday, Nov. 20, 2009 in Chicago. Winfrey announced during the broadcast that her daytime television show will end its 25-season run in 2011.

AP - An Associated Press chart tracking Oprah Winfrey’s net worth growth since 1996.

AP - In this image taken from video Friday, Nov. 20, 2009 and provided by Harpo Productions Inc., talk-show host Oprah Winfrey announces during a live broadcast of "The Oprah Winfrey Show" in Chicago that her daytime television show, the foundation of a multibillion-dollar media empire, will end its run in 2011 after 25 seasons on the air. (AP Photo/Harpo Productions, Inc.) MANDATORY CREDIT, NO SALES