Serj Tankian performs 'Like a Stone' with Prophets of Rage to honour Chris Cornell

It's been two weeks since Chris Cornell passed, but the tributes and special performances from artists around the rock world keep flooding in for him.

The latest comes from System of a Down frontman, Serj Tankian, who joined Prophets of Rage at rock festival Rock am Ring to cover the Audioslave hit, Like A Stone.