A representative for the musician confirmed the news to entertainment magazine Rolling Stone on December 27 but the cause of death is unknown.
According to reports, the musician was found unresponsive in a vehicle in the United States on Tuesday.
The artist - who went by his stage name Jo Mersa - had reportedly suffered from asthma his entire life, and the Florida radio station WZPP claimed he died of an asthma attack.
He is the grandson of iconic reggae musician Bob Marley and the son of Stephen Marley.
Bob tragically died of cancer in 1981 at the age of 36, and is widely considered one of the pioneers of reggae music.
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