Stars of the RBS Six Nations have thrown their weight behind this year's Sport Relief campaign by encouraging everyone to get involved.
The captains of all four Home Nations pulled on their Sport Relief socks and urged everyone to sign up for the Mile.
England's Phil Vickery, Welsh skipper Ryan Jones, Ireland's Brian O'Driscoll and Simon Webster of Scotland put their rivalries aside to back the campaign.
They want everybody to sign up to do a Sport Relief Mile on March 16.
There will be hundreds of Mile events across the UK on Sunday 16 March and the big idea is for everyone to sign up and get sponsored.
This year participants can set their own challenge by having the choice of completing one, three or six Miles.
Sport Relief 2008 is all about challenging yourself, friends, family and colleagues to do something sporty to raise cash.
Stars such as Dame Kelly Holmes, The Spice Girls, Davina McCall, Alan Shearer, James Cracknell, Tess Daly and Mark Ramprakash are getting behind this year's campaign.
With 23 flagship Sport Relief Miles and hundreds of smaller local events planned in every area of the UK there is no excuse for not getting involved.
It costs £5 for adults and £2 for children (under 16) to enter, or £12 for family entry (2 adults, 2 children). Entry fees cover costs only and do not include a donation to Sport Relief.
Sport Relief asks that everyone that takes part gets sponsored and raises money.
THERE ARE FLAGSHIP MILES IN...
Belfast, Birmingham, Brighton
Bristol, Cardiff, Coventry
Edinburgh, Gateshead, Glasgow
Hull, Ipswich, Leeds
Liverpool, London, Manchester
Middlesbrough, Milton Keynes
Comic Relief then spends the money you raise to help vulnerable people living incredibly tough lives both at home in the UK and in the world's poorest countries.
The Sport Relief weekend will kick off on Friday 14 March with a star-studded night of TV entertainment, that will feature Sport Relief versions of The Apprentice and Strictly Come Dancing.
And record-breaking X-Factor superstar Leona Lewis will be releasing the official Sport Relief single.
The campaign promises to be even better than last time around when Walliams swam the channel in record-breaking time and more than 400,000 people did a mile for Sport Relief.
So, be a part of it all and sign up for the Sport Relief Mile now. And remember, that by doing sport, having fun and raising money, you can do good and feel good.