The show was directed by Nigel Lythgoe, and co-hosted by Jimmy Tarbuck. It was first aired on 11 January 1997 by London Weekend Television. Source here.
"Synopsis: International singing superstar Shirley Bassey hosts her own night-club soirée in celebration of her 60th birthday. The world-famous songstress delights a star-studded audience of leading lights from the worlds of entertainment, politics and sport with a series of dazzling performances of her new songs. [...]. With performances also from Ray Charles (Happy Birthday), and from Paul Zerdin [...]."