CORONATION Street will screen its first gay wedding the day Prince William and Kate Middleton marry.

The Street’s Sean Tully and Marcus Dent are due to tie the knot on April 29 in an hour-long spoiler to rival ­EastEnders’ marriage of Phil Mitchell to Shirley Carter

Thirty years ago, Corrie’s Ken and Deirdre Barlow’s wedding attracted 24 million viewers on the day Wills’ own parents Charles and Diana walked down the aisle at St Paul’s Cathedral. ITV bosses hope a similar number will be view this time.

A Corrie source said: “Top-brass think with the country in a frenzy over the royal wedding then it will be the perfect time to show Sean and Marcus tying the knot and trounce EastEnders.”

● AROUND 1,900 wedding guests will be at Westminster Abbey to see William and Kate exchange vows, St James’s Palace announced. More than half will be ­family and friends.