CORONATION Street star Catherine Tyldesley and fiancé Tom Pitfield's relationship will be put to the test in a new series of All Star Mr and Mrs.

The Walkden actress and her personal fitness partner of two years will appear on the ITV programme on Wednesday.

The show, presented by Philip Schofield, follows a host of famous stars and their partners as they compete to win thousands of pounds for their chosen charity.

In every episode, the audience gets an insight into the lives of three celebrity couples — one pair plays for the £30,000 charity jackpot in the final, while the other two couples take home £5,000 each for their charity.

Philip said: "I love finding out what really goes on in the lives of these famous stars and revealing those little details that they never think are going to be exposed."

Some of the other stars taking part include Marvin and Rochelle Humes, Martina Navratilova and her wife Julia Lemigova, and Jimi Mistry and wife Flavia Cacace-Mistry.