Oprah Winfrey offered to share the cover of "O" magazine with Ellen DeGeneres.
DeGeneres has been campaigning for the spot, and has accepted.
Winfrey surprised DeGeneres with a video telephone call on Friday's episode of "The Oprah Winfrey Show." She told a shocked DeGeneres that she was "calling to officially invite you on the cover of O."
DeGeneres, had been mounting a campaign for the cover during her "Ellen" talk show, told Winfrey: "I can't believe you're serious about this. I'm freaking out right now."
Winfrey had gone solo on the cover of "O" magazine for nine years before sharing the spot with first lady Michelle Obama.