The popular street performer, who was mentored by Pharrell Williams during his recent stint on the eighth season of the talent show, was found dead at his Philadelphia, Pennsylvania apartment on Friday (05Jun15).

Now coroners at the Philadelphia Medical Examiner's Office have confirmed the 28 year old took his own life by hanging himself in his basement.

A public memorial service is being planned.

Riley dropped out of the show earlier this year (15) for personal reasons, and subsequently checked into a rehabilitation centre for substance abuse issues.

A statement issued by bosses at NBC, the network behind The Voice, to The Hollywood Reporter reads: "We are sad over the passing of Anthony Riley. We offer our deepest condolences to his friends and family during this very difficult time."