TV
Rex Features
The 66-year-old former Blind Date presenter will join the regular team - Sherrie Hewson, Carol McGiffin and Jane McDonald - while Christopher Biggins will be a guest.
"I am delighted Cilla will be joining us for the day," said ITV daytime chief Fiona Keenaghan.
Black recently appeared on Piers Morgan's Life Stories, where she broke down in tears when asked about the death of her premature baby Ellen in 1975.
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