Though an official cause of death was not released, several news outlets said he died of a blood clot after spraining his ankle.
Johns was voted off the show shortly after performing Aerosmith’s “Dream On” in 2008, surprising viewers who considered him a frontrunner.
In 2009, he released an album, “Hold Back My Heart,” and tweeted in July that he was working on a new song called “Reckless.”
Born in Perth, Australia, Johns first came to the U.S. on a college tennis scholarship and joined the band Film in Atlanta, later playing with the Rising.
He is survived by his wife, interior designer Stacey Vuduris.