The UK will go Comic Relief crazy today when the funny fundraiser reaches its climax.
Celebrities have been queuing up to support this year's campaign.
Sharon Osbourne became a celebrity bingo caller for Gala, Lenny Henry helped npower to launch a book of the nation's favourite lightbulb jokes, Radio 1 DJ Chris Moyles has been touring the UK with a Rallyoke karaoke bus and X-Factor host Kate Thornton joined David Walliams for a special Comic Relief Little Britain show at the Hammersmith Apollo.
The appeal was launched on January 31 so the money is already rolling in but the majority of the cash is usually collected on Red Nose Day itself.
Events will take place across the UK throughout the day which will end with The Big One! TV show between 7pm and 1.30am on BBC1 and BBC2.
Celebrity presenters will include Jonathan Ross, Russell Brand, Lenny Henry, Davina McCall, Graham Norton, Chris Evans, Paul O'Grady, Fearne Cotton and Kate Thornton.
There will also be sketches from Ricky Gervais, Sacha Baron Cohen as Borat, The Mighty Boosh, Catherine Tate, Lenny Henry and David Tennant.
Tomorrow's TV show will feature the finals of both Comic Relief Does The Apprentice and Comic Relief Does Fame Academy as well as a special episode of The Vicar of Dibley featuring Sting.
Sugababes and Girls Aloud will perform their Comic Relief single, a version of Run DMC and Aerosmith's Walk This Way, and there will also be performances from The Killers and Take That.
The last Red Nose Day in 2005 raised £63m and tonight's show will feature special reports from Billy Connolly, Ant & Dec and Michael Palin to show viewers how their donations have helped people in need.