Sheena Easton is the leading star of the West End revival.
The Duchess of Cambridge will add a royal touch to the opening night of the musical 42nd Street in London.
Kate is attending the West End revival of the Broadway hit at the Theatre Royal Drury Lane in her role as Royal Patron of East Anglia’s Children’s Hospices (EACH).
The show, which stars Grammy award-winning singer Sheena Easton, is helping to raise money to build a hospice, to be called The Nook, in Norfolk.
Ahead of the performance, Kate will meet guests. Following the show, she will join the cast on stage for a group photograph.
Kate became the Royal Patron for the charity in 2012 and has attended several official engagements since.
In 2014, she helped to launch the appeal for The Nook, which will provide more families the same facilities as those offered at EACH facilities across Cambridgeshire, Essex and Suffolk.
Tony Award-winning musical 42nd Street debuted in New York in 1980 and has been recreated in theatres all over the world since.
The new production will be directed by the show’s author and director Mark Bramble.