In September 1997, Taco Bell introduced the dog in one advertisement. The advertising campaign began during a peak in the “Burger Wars,” in which several fast food chains engaged in large advertising campaigns against each other. The dog was made to speak through special effects. Her advertising catch phrase was “¡Yo quiero Taco Bell!” (“I want Taco Bell!”). The figure grew popular, so much that toy figures were produced and the commercial became a recognized piece of popular culture. In July 2000, Taco Bell ended the Chihuahua advertisements, ended its relationship with their creator TBWA, and replaced the company president after the biggest decline in Taco Bell history. Whether you loved the Chihuahua campaign or not, this commercial was very memorable…and THAT’S advertising that works!