Originally from Apodaca, Nuevo León, Mexico, the group is made up of brothers Mario, Enrique, José and Javier Esparza, who despite being relatives of José Guadalupe Esparza, director and main vocalist of the group Bronco, managed to position themselves as one of their own. One of the most outstanding groups in the 90s, of their most famous successes and that placed them on all the popularity lists in Mexico, the United States and some South American countries are: "Y te vi con él" "Numero equivocado" " Vamos a amarla los dos" among others.
