My Darkest Days was a Canadian post-grunge band formed in 2005 by lead vocalist Matt Walst, who later became the lead vocalist for Three Days Grace. The band's music can be characterized by its hard rock style infused with elements of pop and punk. They gained prominence after their debut single 'Porn Star Dancing' reached number one on the US Mainstream Rock charts. The band is also known for its distinctive blend of heavy guitar riffs, aggressive drumming, and Walst’s gritty vocals.