Simon Cowell marries Britain's Got Talent pal David Walliams for charity

Simon Cowell and David Walliams are 'to wed' for Comic Relief (Comic Relief)

Simon Cowell looks ready to finally tie the knot - with his Britain's Got Talent pal David Walliams.

Bachelor Cowell will be seen going up the aisle in a Comic Relief sketch to be screened on Red Nose Day this Friday.

And the church full of celebrity wedding guests will be confronted with the sight of Walliams - known for his cross-dressing roles in Little Britain - wearing a wedding gown.

Friends who look on in with bemusement in the film include fellow BGT panellists Amanda Holden and Alesha Dixon, as well as Cowell's former girlfriend Sinitta.

Pudsey the dog - who won last year's BGT final on ITV - also puts in an appearance as well as X Factor presenter Dermot O'Leary and judge Louis Walsh.

The sketch is to be screened during the Red Nose Day broadcast on Friday, which is on BBC1 and BBC2.

PA