In October 2010 the legendary musical "Les Miserables 25th Anniversary Concert at the O2" celebrated its 25th birthday. To mark the occasion, the show's producer Cameron Mackintosh staged an extraordinary one-off concert at the O2 Arena in London. The 25th Anniversary concert hosted a company of over 300 actors and musicians, including Alfie Boe as 'Jean Valjean', Nick Jonas as 'Marius', Norm Lewis as 'Javert', Matt Lucas as 'Thenardier',Lea Salonga as 'Fantine', Jenny Galloway as 'Madame Thenardier', Camilla Kerslake as 'Cosette' and the casts of the Original Production at the Queen's Theatre, the New 25th Anniversary Production at the Barbican, London and members of the Original 1985 London cast.