American musician Chris Cornell died on Wednesday night in Detroit, his representative told AP. Brian Bumbery, Cornell’s representative, said his wife and family were in shock by the “sudden and unexpected” loss.

The cause of death is not known yet, but the Detroit Police said his death was being handled as a possible suicide, The Guardian reported. Cornell was found dead in the bathroom of his MGM Grand Detroit hotel room.

Cornell was the lead singer of iconic band Soundgarden, which was started in the 1990s and went on to win two Grammy awards. It got disbanded in 1997, but they regrouped in 2010 and did a few live shows. They will soon release their first studio album in years.

After Soundgarden had split up, Cornell was also the lead singer of Audioslave between 2001 and 2007. He had formed it with other big names in the industry - Rage Against The Machine’s Tom Morello, Tim Commerford and Brad Wilk. Besides, he also worked alone and produced several solo albums.

Cornell was last on stage “hours” before his death, for a Soundgarden gig at the Fox Theater in Detroit.