"Susanita tiene un ratón" (Susanita has a mouse) is more than just a nursery rhyme; it is a cultural touchstone for generations of Spanish speakers. Written by the Argentine songwriter Rafael Pérez Botija and immortalized by the legendary Spanish clown Miliki , the song creates a whimsical narrative that has remained a staple of childhood education and family entertainment since the 1970s.

The song gained massive popularity through the television show El Gran Circo de TVE , performed by Los Payasos de la Tele (Gaby, Fofó, and Miliki). Their ability to blend music with comedy turned "Susanita" into a cross-generational phenomenon. Even today, the song is frequently featured on educational platforms like YouTube and music streaming services, where modern versions by artists like Cantajuego continue to introduce it to new audiences.

The song tells the story of a young girl named Susanita and her tiny, chocolate-eating mouse. The lyrics are characterized by their simple, rhythmic structure and delightful imagery:

The mouse is described as "chiquitín" (tiny), wearing a "botón" (button) as a hat and sleeping in a "colchón" (mattress).

The enduring appeal of "Susanita tiene un ratón" lies in its innocence and its ability to evoke a sense of nostalgic joy. It represents a golden era of children's television in Spain and Latin America, proving that a simple story about a mouse and a little girl can transcend decades, continuing to bring smiles to children and adults alike.