Italo disco (various capitalized, and sometimes hyphenated as Italo-disco) is a music genre which originated in Italy and was mainly produced in the 1980s. Italo disco evolved from the then-current underground dance, pop, and electronic music, both domestic and foreign (American hi-NRG, French Euro disco) and developed into a diverse genre. The genre employs electronic drums, drum machines, synthesizers, and occasionally vocoders. It is usually sung in English, and to a lesser extent in Italian and Spanish.