Josh Elliott and Sam Champion are returning to “Good Morning America.” Kind of. And so are other famous faces from the morning-show’s past, including Joan Lunden, David Hartman, Diane Sawyer, Charles Gibson, Nancy Dussault, Sandy Hill, Spencer Christian, Lisa McCree and Morton Dean.

In celebration of GMA’s 40th anniversary, ABC will live-stream 40 consecutive hours of programming from the eggs-and-cereal institution, starting November 17 at 5 p.m. and continuing through November 19 at 9 a.m. The event will culminate with an on-TV reunion of the current crew – Robin Roberts, George Stephanopoulos, Lara Spencer, Amy Robach and Ginger Zee – and many of the people who hosted the show over the decades.

Throughout the 40-hour marathon, viewers will get to see exclusive content, interviews and performances on-air, at ABCNews.com and across ABC News’ mobile and social platforms.

On November 17th, the band One Direction will perform songs from their new album, “Made In The A.M,” slated for release on November 13, live from Los Angeles. Their performance will run on air on “GMA” on November 18.  The “GMA” live stream, called “40 for 40,” will broadcast live from the New York City premiere of the Netflix series, “Marvel’s Jessica Jones.”  Viewers can watch the live stream from the red carpet and catch interviews with series stars Krysten Ritter, David Tennant, Mike Colter, Carrie-Anne Moss and see, special appearances from the stars of “Marvel’s Daredevil” and “Marvel’s Luke Cage.” And ABC News Correspondent Nick Watt will travel the country in a “4040 Express Bus” and pays surprise visits to people who were part of the show’s who have inspired  most memorable segments over the decades.

Other former “GMA” staffers expected to appear are Kevin Newman, Steve Bell, Kathleen Sullivan, Mike Schneider, Elizabeth Vargas,Antonio Mora, Juju Chang,  John Coleman,  Dr. Tim Johnson, Dr. Nancy Snyderman, Dr. Jen Ashton, and Dr. Richard Besser.