"Steve Martin - how come you're not funny anymore," inquired Dennis Pennis in a notorious red carpet moment over a decade ago. Well, Martin has many more strings to his bow than his all-but-forgotten interlocutor. On 9 November, the white-haired entertainer comes to the Southbank Centre with his bluegrass band The Steep Canyon Rangers for his first UK appearance behind a banjo. Tickets are on sale from today for Southbank members, and from Thursday for non-members. Prices start from £25. Here's a preview of the great man twanging his banjo, and you can listen to his infectious new album 'The Crow' on Spotify.