Jack Johnson is a singer, songwriter, and musician from Hawaii. He plays the guitar. He visits schools in Hawaii. Jack teaches children to understand and protect the environment. One of Jack Johnson's songs is called "The Three Rs.” The lyrics have a message about protecting the environment. The Three Rs in the song are: Reduce, Reuse, and Recycle. People can reduce plastic by using cloth bags to shop for food. Children can reuse toys and clothes. And they can recycle paper, plastic, and glass.

Jake Shimabukuro is another musician from Hawaii. He learned to play the ukulele when he was four years old. The ukulele is a Hawaiian instrument. It's like a small guitar and has only four strings. Jake first learned to play traditional Hawaiian music. Now he plays traditional, classical, rock, and jazz on his ukulele. He visits schools and brings both his ukulele and a message. His message to students: Stay away from drugs.