Lester Holt through the years

Lester Holt and Carol Hagen attend the 101st Annual White House Correspondents' Association Dinner at the Washington Hilton in Washington, DC, April 25, 2015.

NBC news anchor Lester Holt performs on stage with Rascal Flatts during a private concert for SiriusXM Listeners at Fiddle and Steel Guitar Bar in Nashville, Tennessee, November 6, 2014.

NBC news anchor Lester Holt and SiriusXM host Storme Warren during a private concert for SiriusXM Listeners at Fiddle and Steel Guitar Bar in Nashville, Tennessee, November 6, 2014.

Al Roker and Lester Holt as The Blues Brothers on "Today," Oct. 31, 2014.

Lester Holt attends the New York premiere of "Nightcrawler" in New York City, Oct. 27, 2014.

(L-R) Team USA Bobsledders Nick Cunningham, Justin Olsen, Lester Holt of NBC, Dallas Robinson and Johnny Quinn pose together in the Olympic Park during the Sochi 2014 Winter Olympics in Sochi, Russia, February 8, 2014.

Russian model Irina Shayk poses with Lester Holt on the "Today" show set in the Olympic Park during the Sochi 2014 Winter Olympics on Feb. 8, 2014 in Sochi, Russia.

Lester Holt arrives at Christies Green Auction: A Bid to Save the Earth in New York City, April 22, 2010.

Boston Bruins hockey player Patrice Bergeron, right, shows NBC "Today" television program co-host Ann Curry and Lester Holt the team's place on the Stanley Cup, during their appearance, in New York Friday, June 17, 2011.

Lester Holt, who has been filling in as anchor of "NBC Nightly News," now officially has been named to that position.

Two-time Oscar winner Hilary Swank is interviewed on the NBC "Today" television program by Lester Holt, in New York Thursday Dec. 13, 2007.

Lester Holt, MSNBC Anchor, pictured in 2003.

News anchor Lester Holt poses on the MSNBC set in Secaucus, N.J., April 15, 2003.