David Beckham and his family helped kick off Sport Relief 2010 in style. David, Victoria and their boys designed two T-shirts - one showing David, and the other is a spray paint design.
Fearne Cotton shows off her funky Sport Relief socks. She'll be presenting the Sport Relief Night of TV on Friday 19 March.
Racing driver Jenson Button is backing the campaign too, and he wants everyone to sign up to the Sainsbury's Sport Relief Mile.
Blue Peter presenter Helen Skelton is trying to become the first woman in history to kayak down the Amazon River. It will take her six weeks. Good luck Helen!
TV presenter Christine Bleakley will be attempting the Thomson Sport Relief Water Ski Challenge, where she'll try to stay upright on her skis for over an hour.