Three Days Grace is a Canadian
rock band formed in
Norwood,
Ontario in 1997 with a line-up consisting of guitarist and lead vocalist
Adam Gontier, drummer and backing vocalist
Neil Sanderson, and bassist Brad Walst. In 2003,
Barry Stock was recruited as the band's lead guitarist. The band is based in
Toronto. In 2013, Gontier left the band and was replaced on vocals by Walst's brother Matt.