For the past 42 years, José-Luis Orozco has been entertaining children with songs he sings in English and Spanish. He's passionate about teaching children to be bilingual through music, and he's also written books for kids.
"Let's say hello to each other," he says to a crowd of preschoolers at the Los Angeles Times Festival of Books. "Buenos días," he sings.
"Buenos días," they repeat in unison.
"Good morning," he sings back.