Ricky's got his red nose and a great spot by the red carpet ready to see which celebs are launching this year's Red Nose Day to raise money for people in need in Africa and the UK.
The Saturday's were among the first celebs to pose with their red noses and get the photographers snapping. They look pretty relaxed here...
But it looks as if the cold came as a bit of a shock to some of them when they took their coats off!
Comic Relief started way back in 1985 and has raised millions of pounds for charity. Organisers want everyone to do their bit this year by 'doing something funny for money'.
This year, you can even pick your own nose by choosing one of three new red nose designs, like the ones modelled here by the child stars of BBC sitcom Outnumbered.
Loads of celebs are willing to do almost anything to support the charity, including dressing up as one of the giant red noses, like comedienne Jo Brand.
Steve Jones and Claudia Winkleman are hosting the Comic Relief charity dance-off, where celebrity contestants will be strutting their stuff as they try out famous dance routines.
And this year, there are TWO official Comic Relief singles... The Saturdays told Ricky about their song, Just Can't Get Enough...
And top comedy stars Ruth Jones and Rob Brydon are teaming up with Welsh warbler Sir Tom Jones to release novelty track Barry Islands in the Stream.
Claudia Winkleman told Ricky she always says yes when she's asked to help out with Comic Relief because the charity makes a real difference to people's lives.
Actress Joanna Page has visited some of the projects that have benefited from Comic Relief cash and told Ricky it's really important for everyone to do their bit, however big or small.
This year's red nose day is on Friday 13 March, so better pick your nose quick!
Check out the guy posing as a red nose behind Ricky... he's Radio 1 DJ Chris Moyles' breakfast show producer Aled Jones.
Chris told Aled if he could get his show mentioned on Newsround he'd donate £100 to Comic Relief. Better dig deep Chris!