Mitsuko Uchida, Maria Ewing, Bryn Terfel, Samuel Ramey and the LSO perform at the Theatre Royal, Drury Lane, in aid of Crusaid on 22 May . . . Unidentified Disney executive on the rumoured casting of Madonna as Evita: 'Not if it's the last breath I take' . . . Judith Weir's new opera, Blond Eckbert, has its world premiere at the Barbican Centre on 20 April . . .