May 19, 2011 5:24 pm Madonna Pays Tribute to Oprah Before Her Farewell Special Madonna chats about her decision to appear on Oprah Winfrey’s farewell special and describes how the “Big O” has served as a role model in her own life. Local 1:36 Arizona Senate repeals 1864 abortion ban 1:40 Democrats say Big Oil misled public for decades about climate change 1:45 NYPD enters Columbia University in riot gear to clear protest 3:21 Katy Perry's surprising regret about cheeseburger Met Gala look 4:28 ‘Apples Never Fall' and ‘Jurassic Park' star Sam Neill reveals his real name