Three Days Grace is a Canadian rock band that originated in Norwood, Ontario, in 1992 under the name Groundswell before adopting their current name in 1997. The band’s lineup has evolved over time, with founding members Adam Gontier (vocals, guitar), Neil Sanderson (drums, backing vocals), and Brad Walst (bass) being joined by Barry Stock (lead guitar) in 2003 and later by Matt Walst (vocals) in 2013 after Gontier’s departure; notably, Gontier rejoined the band in 2024, resulting in a dual-vocalist lineup for the first time since their early days. Signed to RCA Records, Three Days Grace has released seven studio albums, including multi-platinum records such as Three Days Grace (2003), One-X (2006), and Life Starts Now (2009), and is renowned for chart-topping singles like “I Hate Everything About You,” “Animal I Have Become,” and “Pain”. The band holds the record for the most No. 1 songs on the Billboard Hot Mainstream Rock Tracks chart, with 18 chart-toppers, and has sold millions of albums worldwide, establishing themselves as one of Canada’s most successful rock acts.