Indio Solari, the reclusive and influential Argentine rock singer whose work with Patricio Rey y sus Redonditos de Ricota helped define a generation of Latin American music fans, died on Friday at his home in Parque Leloir, in the Buenos Aires metropolitan area. He was 77.Local authorities confirmed his death. According to officials from the Ituzaingó Prosecutor’s Office No. 2, emergency services responded to his residence, where he was pronounced dead. No cause of death beyond complications related to Parkinson’s disease was identified.Indio Solari and Skay at Racing Stadium in Buenos AiresPablo Añeli - RollingStoneMr. Solari, born Carlos Alberto Solari, was one of the most enigmatic figures in Argentine rock, known as much for his avoidance of the spotlight as for the fervent devotion of his followers. As the lead singer and lyricist of Patricio Rey y sus Redonditos de Ricota, he helped shape a band whose cryptic lyrics and independent ethos made it a cultural phenomenon from the late 1970s through the early 2000s.After the band’s breakup, he continued performing with Los Fundamentalistas del Aire Acondicionado, maintaining massive audiences despite his increasingly rare public appearances. He also led the lesser-known project El Mister y los Marsupiales Extintos.His songs, including “Ji ji ji,” became anthems for fans across Argentina, often associated with large, communal concert experiences that blurred the line between music and ritual.Recently, Mr. Solari had spoken publicly about his diagnosis of Parkinson’s disease, which progressively limited his ability to perform. In February, his family used his official social media accounts to deny reports that he had suffered a stroke, stating that he was undergoing routine medical checkups.Additional details were not immediately available.