You could google for mariachi karoake..... but....
Are you wanting songs 
in spanish? 
If not, you're gonna have to stick to things like *La Bamba* and *Poncho & Lefty*:) 
Not much help, I know, but at all the celebrations around here, all you hear are songs actually sang 
in Spanish. 
(oh, and if you DO google it..... the proper spelling is *Cinco de Mayo*.....)   
