Jesse Colin Young, the Youngbloods singer known for the hit “Get Together” died Sunday at the age of 83. TMZ reported Tuesday the folk rocker died from a heart attack, citing the Aiken County Coroner’s Office in South Carolina.

Popular rock singer and songwriter Jesse Colin Young has died. He was 83. His publicist said he died in his home in Aiken, South Carolina on March 16. Young was known for his time as the leader of the 1960s band, The Youngbloods, and for his solo career that followed. He performed for more than five decades, according to Ultimate Classic Rock.

The voice of an iconic 1960s folk-rock song is dead at age 83. Jesse Colin Young, the leader of the ‘60s group the Youngbloods, died Sunday at his home in Aiken, South Carolina, according to a press release. A cause of death was not announced.