Carlos Alberto Mestre mostly known by his stage name Nito Mestre, is an Argentine musician, founding member –along with Charly García– of Sui Generis, member of PorSuiGieco, bandleader of Nito Mestre y los Desconocidos de Siempre and a recording solo artist. Sui Generis, was initially formed in 1969 by Charly García, Nito Mestre, Rolando Fortich (bass guitar Liam Young, Alberto Rodriguez and Carlos Piegari. Later on, Sui Generis became a duo as everyone left except for García. After the band split in 1975, Nito Mestre formed a new band called "Nito Mestre y los Desconocidos de Siempre" with María Rosa Yorio on vocals, Rodolfo Gorosito on guitar, Alfredo Toth on bass, Ciro Fogliatta on keyboards and Juan Carlos "Mono" Fontana as a drummer. In the early 80s, Nito pursued a solo career.

Carlos Alberto García Moreno, better known by his stage name Charly García, is an Argentine singer-songwriter, multi-instrumentalist, composer and record producer, considered one of the most important and avant-garde figures of Argentine and Latin American music. Named "the father of rock nacional", García is widely acclaimed for his recording work, both in his multiple groups and as a soloist, for the complexity of his music compositions, covering genres like folk rock, progressive rock, symphonic rock, jazz, new wave, pop rock, funk rock, and synth-pop. His lyrics are known for being transgressive and critical towards modern Argentine society, especially during the era of the military dictatorship, and for his rebellious and extravagant personality, which has drawn significant media attention over the years.