Soundgarden drummer and Pretty Reckless singer team for tribute to Chris Cornell
"I will not sacrifice our children's futures for someone else's greed"
Seven unheard tracks were "bequeathed to Chris' Estate," according to late singer's wife
"We definitely have another record in us"
Grunge gods thrilled crowd just months after the release of 'Badmotorfinger'
Seattle alt-rock band broke through with landmark 1989 major-label debut
Kim Thayil says band need Chris Cornell demos for work-in-progress album
Chris Cornell and Co.'s heartfelt take on 1994 hit appears in new concert film