As well as looking to the future, An Evening with James Corden and Ruth Jones looked back at the success of Gavin and Stacey since it first aired in 2007, with behind-the-scenes insight from Jones and Corden.
The closing night of the book tour also featured a special performance from Oscar Hartland, known for playing Neil the baby, who sung Blackbird by The Beatles from the show’s final episode.
Their memoir was published on 9 October – almost a year on from the show’s record-breaking finale on Christmas Day 2024.
A release date for The Choir is yet to be announced.