Michael Johns, the Perth-born singer who charmed tens of millions of viewers on hit US TV show American Idol, has reportedly died. He was 35.

The charismatic performer is believed to have died from a blood clot in his ankle, according to The Hollywood Reporter.

“It is with a heavy heart and inconsolable sadness that we confirm the passing of our friend Michael Johns,” the administrator of his website Tweeted on Saturday.

Johns impressed the notoriously tough English judge Simon Cowell when he appeared as a contestant on the top-rating show in 2008.

Johns made it to the finals, finishing eighth, despite controversy.