Watch Ellen's "O, Yes I Can Campaign!"
Eventually, Ellen's message reached O's monthly cover girl. In March 2009, Oprah called Ellen while she was taping her show and invited her to be on the magazine's cover.
Watch Oprah grant Ellen's wish.
For the December 2009 issue of the O, Oprah and Ellen got together and shot four separate covers. Now, for the first time in 10 years, Ellen is back on the Oprah Show stage. "I love now being able to really call you a friend," Oprah says. "Before we were sort of like celebrity friends."
"I've always wanted to be closer," Ellen says. "I can't believe it actually happened. I'm really thrilled, and I love the cover. I love it."