The woman, who does not want to be named in case it spoils the surprise, is desperately trying to find a replacement act for the big day on December 12.
She said: 'We just need someone that's very jolly and can sing to some elderly people in a care home.'
She is looking for someone to spend the afternoon singing wartime songs at a care home to the west of Chichester.
Anyone who can spare time to sing songs by artists like Vera Lynn on December 12 should call 07792 424477.
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