In a very surprising move in the network news world, ABC 'World News' anchor Charlie Gibson is stepping down as the anchor of the popular broadcast. Diane Sawyer will be replacing him in the anchoring duties.

The New York Post broke the story on Wednesday, reporting that Gibson will continue to anchor 'World News' through the end of the year. Sawyer, 63, will then become the second female network news anchor, joining Katie Couric.