'GMA’ to Celebrate 40th Anniversary With 40-Hour Live Marathon Event

— -- To celebrate its 40th anniversary, “Good Morning America” will broadcast nonstop for 40 consecutive hours in an on-air and livestreamed event featuring celebrity performances, special events and the reunion of the morning show’s previous anchors David Hartman, Charlie Gibson, Sam Champion and Joan Lunden, among others.

The “40 for 40” event will start Tuesday, Nov. 17 at 5 p.m. and will run uninterrupted through 9 a.m. Nov. 19.

During the marathon, the band One Direction will perform several songs from their new album, "Made in the A.M," including the new hit song, "Perfect," for the first time in the U.S. Jennifer Lawrence, Liam Hemsworth and other members of the cast of “The Hunger Games: Mockingjay Part 2,” will appear live.

Viewers will also see live rehearsals from “Dancing With the Stars” as competitors prepare for the season’s finale, as well as a livestream from the red carpet of the premiere of the Netflix original series “Marvel’s Jessica Jones.”

Mark Cuban, Daymond John and Kevin O’Leary, stars of ABC’s hit show “Shark Tank,” will join the event for a special edition of “Ask the Sharks” where they will answer viewer questions, and “GMA” contributor Tory Johnson will present the biggest “GMA” Deals and Steals ever – offering 40 products under $40.

The event will end on Nov. 19 with the reunion of anchors. In addition to Champion, Hartman and Lunden, the former anchors and on-air faces will appear next to current co-anchors Robin Roberts, George Stephanopoulos, Amy Robach, Lara Spencer and Ginger Zee.

Among those who will appear on the show are Nancy Dussault, Sandy Hill, Joan Lunden, Charlie Gibson, Kevin Newman, Lisa McRee, Diane Sawyer, Steve Bell, Kathleen Sullivan, Mike Schneider, Morton Dean, Antonio Mora, Josh Elliott, Dr. Tim Johnson, Dr. Nancy Snyderman, John Coleman, Spencer Christian and Mike Barz.

GMA’s “40 for 40” broadcast will be streamed live at ABCNews.com/live and GoodMorningAmerica.com.