A registered nurse and fan named Yolanda Saldívar asked Quintanilla, Jr. to start a fan club in San Antonio. Saldívar had the idea after she had attended one of Selena's concerts. Quintanilla, Jr. approved Saldívar's request; he believed the fan club would bring more exposure for the band. Saldívar soon became a close friend to Selena and the family; she was trusted and became the acting president of the fan club in 1991. That same year, Salvadoran singer Álvaro Torres composed a duet he wanted to record with Selena. The song, "Buenos Amigos", was produced by Enrique Elizondo and was released on Torres' tenth studio album "Nada Se Compara Contigo" (1991). "Buenos Amigos" peaked at number one on the US "Billboard" Top Latin Songs chart, giving Selena her first number-one single. The song's music video earned Selena and Torres two nominations at the 1992 "Billboard" Music Awards. The track was also nominated for Duo of the Year at the 1992 Tejano Music Awards. Biographer Deborah Parédez wrote that the track enabled Selena to tour the west and east coasts of the United States. According to John Lannert of "Billboard" magazine, "Buenos Amigos" was helped by increased airplay on regional Mexican and Tejano radio stations, which had previously dismissed Selena's recordings.