Three Days Grace is a Canadian rock band, formed in Norwood, Ontario, Canada in 1992, under the name Groundswell. After a breakup in 1995, the band reformed in 1997 under its current name and 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.
After signing to Jive Records, Three Days Grace released two studio albums, Three Days Grace in 2003 and One-X in 2006, both of which have been certified platinum and double platinum in the United States and Canada, respectively. In 2007, the band was declared number one rock artist of the year by Billboard and was the number four artist in airplay in Canada that same year. The band's third album, Life Starts Now, was released on September 22, 2009.