High Quality Content by WIKIPEDIA articles! Three Days Grace is a Canadian rock band, formed in Norwood, Ontario, Canada in 1992, originally under the name Groundswell. After a breakup in late 1997, the band regrouped in the same year under its current name and with a line-up consisting of guitarist and lead vocalist Adam Gontier, drummer and the 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.