More than 150 comics, including Johnny Vegas, will tonight attempt to get into the Guinness Book Of Records for the biggest ever comedy bill.
Each act in the Manchester Comedy Festival event will be given just two minutes, meaning the show will run for more than five hours.
The record bid follows a successful event in 2001, in which 102 performers appeared on the same bill. The plan had been to attract 200 comics, but Guinness insisted that each perform a minimum set.
Headliner Vegas is the only comic not to be bound by the strict two-minute rule.
Stand-Up 150 takes place at Manchester's Dancehouse Theatre from 7pm tonight with tickets, pricd £7 (£5 concessions) available from the box office on 0161 237 9753.
The event will also be raising money for the Francis House children's hospice.