Theory of a Deadman is a Canadian rock band from Delta, British Columbia, formed in 2001. The band is currently signed to Roadrunner Records as well as Island Records. The band also includes traits of other music styles, such as country and acoustic, as well as their post-grunge and alternative rock base. So far, they have a total of 5 top 10 hits on the Hot Mainstream Rock Tracks chart, including one #1 hit, "Bad Girlfriend". They have also released two #1 hits in their native Canada.