Jo Brand is to headline a star-studded charity gala to bring the London Comedy Festival to a close.
The event has been organised to benefit Breakthrough Breast Cancer by John Moloney, who will compere the event.
He explained that the cause was close to him, saying: "Cancer touches all our families. My sister has been - and still is very ill with this debilitating illness.
"Luckily I have been able to ask friends and colleagues to give their time for free. These people were prepared - as most comics are - to give up their time to help a good cause."
Breakthrough To Comedy takes place at the Theatre Royal Drury Lane on Sunday May 26.