Good Morning America's Diane Sawyer will replace anchor Charlie Gibson when he steps down from ABC's World News at the end of the year.

Gibson, 66 is stepping down after replacing former anchors Elizabeth Vargas and Bob Woodruff in the show in 2006. During these three years he covered significant events such as the Virginia Tech shooting in 2007 and the historic 2009 Presidential Election.

Diane Sawyer is the right person to succeed Charlie and build on what he has accomplished, ABCNews President David Westin said in an e-mail to staff according to the New York Daily News.

Sawyer would be the second woman after Katie Couric, to solo anchor an evening newscast.15