. >>> hey, sportsnenext.don't go away. >>> something men have to worry about is losing their hair someday. but thousands of guys around the world are volunteering to go bald. as siena reports, the st. baldrick's foundation is battling childhood cancer with an electric razor. >> the foundation holds hundreds of events every year, where men line up to lose their locks. first of all, who is st. baldrick's anyway? >> there really is no st. baldrick. it's the four guys who started st. baldrick'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,