French and Saunders will perform their last ever sketch in a one-off special for the charity event to be screened on Friday, March 13, according to The Sun.
The duo have filmed a spoof version of the smash hit film Mamma Mia!, which sees Sienna Miller in a comic turn at the bride-to-be.
Alan Carr, Matt Lucas and Jennifer's Absolutely Fabulous pal Joanna Lumley will also appear in the sketch.






Comments (1)
I knew they would get back together again!