Three Days Grace is a Canadian alternative metal/post-grunge band formed in 1997. The band consists of Adam Gontier, Neil Sanderson, Brad Walst and Barry Stock. Adam, Brad, and Neil originally formed a band called Groundswell in 1992 during their freshman year of high school. Joe Grant, the fourth member of the band, was there from the beginning, but he left in 1997 to attend law school. The three remained a trio and renamed themselves Three Days Grace, which was a name Brad came up with.

They met up with producer Gavin Brown, who was formerly a member of the band Big Sugar. Brown helped produce their self-titled debut album, Three Days Grace, which was released in 2003; it reached the top ten of the American Albums chart, the top 100 of the Canadian Billboard 200 albums chart, and number-2 on Billboard´s Top Heatseekers chart.