A clairvoyant who champions herself as Britain’s best-loved psychic has rejected allegations she used off stage helpers during her shows.

Psychic Sally, or Sally Morgan, whose A-list clientele includes Princess Diana, Robert De Niro, George Michael, and Uma Thurman, angered fans who claimed to hear a man telling her what to say at a performance.

The show, at Dublin’s Grand Canal Theatre on Sunday September 11, prompted one audience member, Sue, to call in to Irish radio programme, RTE Radio 1 the following day.

Sue said she was impressed with the accuracy of the readings in the first half of the show, but said during the second half she heard somebody talking loudly and realised everything he said Mrs Morgan repeated.

Further callers to the programme told of similar experiences at the show of the clairvoyant from New Malden. Mrs Morgan issued a statement, which rejected the allegations she was being told what to say or that theatre staff had spoken to audience members before the show to glean information.

She also assured people the head mic she used, and always has used, only transmitted sounds to the audience and it was impossible for her to receive noise through it.

She said: “To think that everyone at the theatres I perform in is involved in a big conspiracy is ludicrous.

“I totally respect cynics and sceptics, as if we don’t ask questions we don’t get answers. However, I will not stand by and be accused of fraudulent behaviour, from inaccurate sources of information.”

General manager of Grand Canal Theatre Stephen Faloon said the voice heard belonged to two lighting technicians who were misconstrued as feeding information after a window was left open.

He said: “The Grand Canal Theatre would never be a part of any trickery to mislead the audience and as such no usher, barperson or any other member of staff were involved in any act to get information from the audience to give to Sally to use in her show.”