This is from American Dad S04E12 “Roy Rogers McFreely”.

Roger first starts singing “El Perro” after Stan swallows all the horseradish. Later in the episode, the song is played during the car chase between Roger, Stan, Greg and Terry.

Spanish Lyrics:
El perro, el perro, es mi corazón,
El gato, el gato, el gato no es bueno.
Cilantro es cantante,
Cilantro es muy famoso,
Cilantro es el hombre con el queso del diablo.
El perro, el perro, nunca sin razón,
El gato, el gato, el gato es obsceno.
Cilantro es caliente, Cilantro es cariñoso,
[Francine is vacuuming]
… nunca sin razón,
El gato, el gato, el gato es obsceno.
Cilantro es caliente,
Cilantro es cariñoso,
Roger : See you later, boys!
… mejor que su esposo.

English Translation:
The dog, the dog, is my heart
The cat, the cat, the cat is not good
Cilantro is a singer
Cilantro is very famous
Cilantro is the man with the cheese of the devil
The dog, the dog never without reason
The cat, the cat, the cat is obscene
Cilantro is hot
Cilantro is affectionate
… never without reason
The cat, the cat, the cat is obscene
Cilantro is hot,
Cilantro is affectionate,
… better than her husband

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