Ali Rogin:

Public figures from First Lady's and the Brady Bunch actors to singer Sammy Davis Jr. and supermodel Heidi Klum have taken up to cause. The little orange boxes were many children's first encounter with giving back. UNICEF USA President and CEO Michael Nyenhuis was one of them.

Michael Nyenhuis, President and CEO, UNICEF USA: I was a boy growing up in Owatonna, Minnesota, and had my little cardboard box and went door to door and it awakened in me something that said, hey, you know there's a bigger world out there and I can do something about it.

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