This week's show is a wonderful Welsh triple-bill, featuring a rare appearance by the legendary Dame Shirley Bassey, who chats about her starry career and sings The Girl from Tiger Bay. Award-winning actor Michael Sheen talks about his roles as Tony Blair, Kenneth Williams, David Frost and Brian Clough, and brilliant Welsh comedian Rhod Gilbert takes the comedy chair.

The guests on Graham's sofa: the one and only Dame Shirley Bassey, comedian and children's author David Walliams, comic actress Catherine Tate, director and IT Crowd star Richard Ayoade, and music from the great Annie Lennox, who performs God Bless The Child.

On Graham's sofa are Chris Hemsworth, Ron Howard, Lily Tomlin and Kevin Bridges. Plus music from Blake and Dame Shirley Bassey, who perform their Christmas single.