News has just come through that Soundgarden and Audioslave frontman Chris Cornell has passed away at the crazy-young age of 52.

We’re quite in shock, to be honest.

His representative gave a statement to The Associated Press, in which he dropped the bombshell that Cornell’s “sudden and unexpected” death happened Wednesday, while on tour in Detroit.

The cause of death is yet to be identified.

One of the leading talents of what became known as ‘grunge’, Seattle-born Cornell actually formed Soundgarden many years prior to that sound breaking, back in 1984. Their third studio album, Badmotorfinger, was the breakthrough, including the singles Jesus Christ Pose and Outshined.

If not busy enough, Cornell also managed to form Temple of the Dog in 1991, as a tribute to his late friend Andrew Wood. He also collaborated with or helped out many other acts over the years, including Screaming Trees, Alice Cooper and Slash.

However, it was Soundgarden’s fourth album, Superunknown that went supernova, giving the band a number one debut in the US as well as a Grammy. Genuine classics Spoonman, Fell on Black Days and Black Hole Sun all emanated from that one incredible album.

After Soundgarden broke up in 1996, Cornell pursued a solo career. This included a Golden Globe nomination for The Keeper, his contribution to the Machine Gun Preacher soundtrack. When it came to film music, however, perhaps his best remembered track is You Know My Name, from 2006’s Bond flick Casino Royale, co-written with 007 music guru David Arnold.

2001 saw him join alt-rock supergroup-of-sorts Audioslave, which was basically him and the three members of Rage Against the Machine who remained after Zach de la Rocha quit. They released three albums, with Cornell contributing all of the lyrics.

Soundgarden reformed in 2012, unleashing new album King Animal.

As mentioned we’re really quite in shock at this great loss to both the musical and philanthropic worlds. Vale Chris Cornell.