Felix Contreras

Updated at 9:34 p.m. ET Saturday

João Gilberto, one of the principal architects of the Brazilian musical style bossa nova, has died at his home in Rio de Janeiro, according to a Facebook post by his son. João Marcelo Gilberto wrote that his father, who was 88 years old, died following an undisclosed illness.

Two South American countries have been in the news a lot lately. Venezuela's economy has collapsed in a political crisis and in Brazil, Jair Bolsonaro, the country's new far-right president, has made racist comments and been accused of stoking anti-gay violence. For musicians in both those countries, the news is affecting their work.

Joe Jackson, patriarch of the legendary Jackson family, which included Michael and Janet Jackson, has died, the estate of Michael has confirmed in a statement. No cause of death was given, though he had reportedly been diagnosed with cancer.

Officially, Joe Jackson was a band manager, taking five of his sons from a locally celebrated pop vocal group in Gary, Ind., in the mid-1960s to international acclaim, acting as the launchpad to superstardom for his son Michael. Their paths, however, would be revealed through the decades as ones paved in checkers.

Fifty years ago, Johnny Cash performed at Folsom State Prison in Folsom, Calif. The January 1968 concert and live album it produced, At Folsom Prison, helped revitalize Cash's career, inspiring him to testify for prison reform and cementing his reputation as a voice for the downtrodden.