Fatman Scoop died after reportedly collapsing during a concert Friday night in Connecticut.

His family confirmed his death in an Instagram post on Saturday. He was 53.

“It is with profound sadness and very heavy hearts that we share news of the passing of the legendary and iconic FatMan Scoop,” a post on his Instagram page read. “Last night, the world lost a radiant soul, a beacon of light on the stage and in life.”

The rapper and hype man, whose real name is Isaac Freeman III, was performing at the Green and Gold Party summer concert in Hamden, about six miles from New Haven, when he suffered a medical emergency on stage.