Entitled Broadway at the Broadway, the salute to Herman's work will take place Nov. 15 at 7:30 PM London time to coincide with the theatre's current studio production of Mack and Mabel, running Nov. 11-Dec. 7, which will not take place on Nov. 15. The company of Mack and Mabel is set to be joined by a cast of West End guests who, subject to availability, will include Helena Blackman (TV's "How Do You Solve a Problem Like Maria?" and South Pacific on tour), Helen Hobson (Heathcliff, Mamma Mia!, Blood Brothers), Rebecca Caine (Les Misérables, The Phantom of the Opera), Shona Lindsay (Aspects of Love, Seven Brides for Seven Brothers), Glyn Kerslake (The Phantom of the Opera, Les Misérables), Susannah Fellows (Chicago, Mamma Mia!), Anita Louise Combe (Saturday Night Fever, Chicago), Kay Murphy (The Rocky Horror Show), Alexander Evans (Sunset Boulevard) and Stephen Weller (Martin Guerre, The Producers).

Also billed to appear are Peter St James, Debbie Saloman, Samantha Giffard, Graham Weaver, Jonathan Eio, Clare Reilly and Peter Cumin.

The performance is being staged as a benefit to aid the Terrence Higgins Trust.

To book tickets contact the box office at 020 86909 0002 or visit www.broadwaytheatre.org.uk for more details.