Oprah's final days as the queen of daytime television are approaching and May 25 marks the last episode of the Oprah Winfrey Show. To lead up to the grand occasion, the last three Oprah episodes are the biggest, most celebratory episodes ever. Oprah's team surprised her with a two-day celebrity-studded farewell episode on May 23 and 24 and all the big-name celebrities who appeared or are appearing are below. The final episode though, Oprah went solo to have an intimate session with her beloved viewers. It just goes to show that no one is a bigger star on Oprah's show than Oprah herself.