Patty and Mildred Hill are the most famous composers you've never heard of.
They came up with "Happy Birthday to You!" in an effort to make something all children could easily sing. They ended up with a tune the whole world loved.
"Happy Birthday to You!" has been sung to presidents and kings, on big stages and in outer space. And it all started in a kindergarten classroom with a teacher coaxing her children to sing an easy tune all together.
Rachelle Burk loves extreme adventures. She is a scuba diver, caver, and the author of more than twenty-five fiction and nonfiction books for children. She visits schools around the country.
Abigail Lashbrook studied art in New York and San Francisco, both fine art and illustration. She brings both skills to her work in picture books.