The Mousetrap celebrates 60th birthday with gala.

Agatha Christie's long running thriller The Mousetrap , has moved into its 60th year in the West End, and on 25 November 2012 will celebrate the actual 60th Birthday with a gala in aid of Mousetrap Theatre Projects.

The Mousetrap will also begin its first ever UK tour opening in September 2012. The tour is planned to run for 60 weeks. All-star casting to be announced. Each star performer will tour for 12 weeks.

Agatha Christie's The Mousetrap opened on 25th Nov 1952 at Ambassadors Theatre, and transferred to St Martin's Theatre, its current home, on 25th March 1974.

Directed by David Turner, The Mousetrap's plot is one of the West End's best-kept secrets, and audiences are requested to keep the identity of the killer locked in their hearts.

A group of people gathered together in a remote part of the countryside discover there is a murderer in their midst. The question is which one of them is the guilty party.

Originally written as a radio play, the world's longest running play has now chalked up over 24, 000 performances.

Over ten million people have been to see the Agatha Christie classic since it opened on 25th Nov 1952 with Richard Attenborough and Sheila Simms in the leading roles. Since then over 400 actors and actresses have appeared in the play, which has been presented in 44 countries and translated into 24 different languages.

In 2000 the set was replaced for the first time during the run at St Martin's Theatre, still to the same design as the original. This task was completed over a weekend without the loss of a performance.

In the world's worst film deal, the movie rights to The Mousetrap were sold in 1956 - with the proviso that the film could not be released until six months after the end of the London stage run.

One actor, David Raven, played Major Metcalf for 4575 performances from July 1958 to November 1968.

Nancy Seabrooke, understudied the role of Mrs Boyle for 6,240 performances for 15 years, ending in 1994. She appeared 72 times.

Agatha Christie became a Dame of the British Empire in 1971; she died on the 12th January 1976 aged 85.

Mousetrap tickets are now on sale