st. baldrick's anyway? >> there really is no st. baldrick. it's the four guys who started st. ldrick's are irish, so it's a play on words with st. patrick's. people shave their heads in honor of the children with cancer. and today we're going to have those little honorees here helping to shave people's heads and raise awareness and money for childhood cancer, to cure childhood cancer. >> reporter: many children fighting the disease lose their hair during treatment. the men of st. baldrick's want to show the kids they're not alone. >> they don't have a choice. i have a choice. i'm going to show my support. if they can do it, i can do it too. >> reporter: in the weeks before the event, the shavees ask friends and family to donate money to the cause. >> thank you so much. >> in total, over my three years of shaving, i've raised over $10,000, i believe. >> reporter: that money goes to children's hospitals and scientists working on new treatments. since 2000, st. baldrick's has donated an incredible $60 million. >> my hope is that the money we raise today, who knows, maybe we will f