James Corden has promised that the much awaited one-off Christmas special of Gavin & Stacey will be a "nostalgic joy-bomb."
The BAFTA-winning show originally aired from 2007 to 2010 and was created by Cordon and co-star Ruth Jones.
"We owed it to the characters. We wanted to see if there was something there, and for a while we weren't sure. Then, once there was, my feeling was, life's too short. Fear is the absolute reason to do it." Corden told The Sunday Times.
The show followed the romance between Gavin (Matthew Horne), from Essex, and Stacey (Joanna Page) from Wales,, who fell in love and married after speaking on the phone to each other every day at work.
Corden, who is hosting this year's Tony Awards, and Jones will return to their roles as Smithy and Nessa, alongside the other supporting cast, Rob Brydon, Larry Lamb, Melanie Walters and Alison Steadman.
When the show last aired on New Year's Day in 2010, the finale was watched by more than 10.2 million viewers.
Corden and Jones said in a statement: "Over the last ten years we’ve talked a lot about Gavin and Stacey - where they might be today and what their lives might look like.
"And so in secret we took the plunge and wrote this one-hour special. We’ve loved revisiting Barry and Essex again and bringing the characters back together has been a joy.
"We’re so excited to get the chance to work with our fabulous cast and crew once more and to give fans of the show a festive treat this Christmas."
The one-off show will air on the BBC One on Christmas Day.
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