A year and a half after Gloria joined the group, by then renamed the Miami Sound Machine, the band recorded its first album for a local label. Renacer was a collection of disco pop and original ballads sung in Spanish. Although Estefan was somewhat plump and very shy when she joined the band, she slimmed down with a rigorous exercise program and worked to overcome her natural reticence. After several months on a professional level, Emilio and Gloria's professional relationship turned personal, and in September 1978, they were married. Their son Nayib was born two years later, about the time that Emilio quit his job at Bacardi to work full-time with the band, then made up of bassist Marcos Avila, drummer Kiki Garcia, keyboardist, arranger, and saxophonist Raul Murciano, keyboardist Emilio, and soprano Gloria. By 1980 the group had signed a contract with Discos CBS International, the Miami-based Hispanic division of CBS Records. Between 1981 and 1983 the Miami Sound Machine recorded four Spanish-language albums made up of ballads, disco, pop, and sambas. The Miami Sound Machine first met with success in Spanish-speaking countries. The group had dozens of hit songs around the world—particularly in Venezuela, Peru, Panama, and Honduras—but enjoyed little recognition in the United States. The Miami Sound Machine's first North American hit was from the band's first English album, Eyes of Innocence. The disco single "Dr. Beat" went to the top of the European dance charts. The song's popularity prompted CBS to move the group to Epic, a parent label, and inspired group members to write songs in English, first with a couple of numbers on the otherwise Spanish-language record Conga. The rousing dance number "Conga" itself became the first single to crack Billboard's pop, dance, black, and Latin charts simultaneously. Estefan and the group, the membership of which has changed over the years, pride themselves on the combination of Latin rhythms, rhythm and blues, and mainstream pop that makes up their hybrid sound. In 1986 the album Primitive Love, the band's first recording entirely in English, set off a string of hit singles. "Bad Boys" and "Words Get in the Way" made their way onto Billboard's Top 10 pop chart. Behind the scenes was the work of the trio known as the "Three Jerks" producer/drummer Joe Galdo and his partners Rafael Vigil and Lawrence Dermer—who wrote, arranged, and performed the majority of the music on Primitive Love and the follow-up album, Let It Loose. As a band, the Miami Sound Machine developed a split personality.