Denzel Washington, Jackie Joyner-Kersee, Martin Sheen, Wesley Clark and Shaquille O'Neal, who attended the Boys & Girls Clubs of America as children, have lent their childhood photos to the organization for a national advertising campaign.

Washington unveiled the "BE GREAT" campaign Wednesday, asking people to volunteer to help at their local clubs.

"What's going on with children doesn't worry me. What's going on with adults worries me. If we are not more committed to these young people ... they will go as far as we take them, so the onus is on us, not on the children," Washington told reporters.