Jairo, pseudonym of Mario Rubén González Pierotti (born June 16, 1949) is an Argentine singer-songwriter and composer. Throughout his career, he has performed more than 500 songs in Spanish, French and Italian. Among its most widespread songs they are: «Tu alma golondrina», «Por si tú quieres saber», «Tristezas», «De pronto sucedió», «El valle y el volcán», «Si vuelves será cansancio», «Amigos míos me enamoré», «Hoy dejó la ciudad», «Nos verán llegar», «Revólver» and «Me encanta esta hora del día». Mario Rubén Go