American Idol star CJ Harris died on Sunday (Picture: Getty)

American Idol star CJ Harris has died at the age of 31.

The musician, who competed in the competition in 2014, was rushed to hospital after an apparent heart attack in Alabama on Sunday.

TMZ reports that he was taken in for medical treatment on Sunday but was later pronounced dead.

This is a breaking news story, more to follow soon… Check back shortly for further updates.

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RIP.