Topo Gigio was created in Italy in 1958 by puppeteer Maria Perego and first appeared on Italian television in 1959. Voiced with a shy, childlike tone, the mouse became an international star through regular appearances on The Ed Sullivan Show in the United States during the 1960s and through hugely popular Spanish and Portuguese versions across Latin America. Generations later, short clips of his songs still circulate online as a shorthand for childhood, innocence and bedtime nostalgia.