Three Days Grace

Three Days Grace became a dual-vocalist band in 2024 when original singer Adam Gontier rejoined alongside Matt Walst, who had fronted the group since 2013. The Canadian rock band began in Norwood, Ontario, in 1992 as Groundswell, playing local backyard parties and area venues before breaking up in 1995. Gontier, drummer Neil Sanderson and bassist Brad Walst regrouped in 1997 under the Three Days Grace name and later based themselves in Toronto.

The band's early lineup was completed in 2003 with the addition of lead guitarist Barry Stock. That year brought their self-titled debut album, followed by One-X in 2006 and Life Starts Now in 2009. Gontier left in 2013, and Walst's younger brother Matt, previously the lead singer of My Darkest Days and a longtime Three Days Grace songwriter, stepped in as vocalist. With Gontier's return, the band became a five-piece for the first time since the Groundswell era.

Signed to RCA Records, Three Days Grace have released eight studio albums: Three Days Grace, One-X, Life Starts Now, Transit of Venus, Human, Outsider, Explosions and Alienation. Their first three albums received RIAA certifications of triple platinum, five-times platinum and quadruple platinum in the United States, while Transit of Venus and Human were certified gold. In Canada, those first three records were certified platinum, triple platinum and double platinum. One-X also earned gold certification in the United Kingdom and New Zealand.

The group has scored 21 No. 1 songs on Billboard's Hot Mainstream Rock Tracks chart, along with three No. 1 hits on the Alternative Songs chart. As of 2022, Three Days Grace had sold more than 10 million albums and singles worldwide.