Three Days Grace is a Canadian rock band formed in Norwood, Ontario, in 1992 as Groundswell, a high school group that released one album before disbanding in 1995. The core members, Adam Gontier on vocals and guitar, Neil Sanderson on drums, and Brad Walst on bass, reunited in Toronto in 1997 under the new name and added guitarist Barry Stock in 2003. They signed with Jive Records after producer Gavin Brown helped refine tracks like 'I Hate Everything About You.' The band has released eight studio albums, starting with their self-titled debut in 2003, followed by One-X (2006), and most recently Alienation in 2025, their first with Gontier since his 2013 departure. Gontier was replaced by Matt Walst, brother of bassist Brad Walst. Their first three U.S. albums achieved platinum certifications, and they hold a record of fourteen #1 hits on Mainstream Rock charts. Live, they are recognized for high-energy performances developed over tours spanning decades.