Theory of a Deadman是来自加拿大的乐队,Tyler Connolly（主唱/吉他手）据传闻在一次音乐会聚会上曾带着乐队的demo唱片给Nickelback的Chad Kroeger,之后不久两个人就开始合作创作音乐。他们的作品之中，"Invisible Man,"被在2002年的成功电影“蜘蛛人”中被用作了片尾曲，"Hero"（一个与Kroeger合作组成的歌手Josey Scott）.在同年，Theory of a Deadman的同名专辑发布。同样重要的Dave Brenner（吉他手），Dean Back（贝斯手）和Tim Hart（鼓手），专辑中的hook-laden，情绪化的硬核摇滚听起来非常类似于他们乐队的著名投资人的乐队-事实上，也是同样的让人不安。但是大强度的巡演工作量和朴素的风格帮助Theory of a Deadman摆脱了题材上的限制，这使得他们表现的更加显眼，三人的演奏团体在之后注入了新鲜血液Brent Fitz（来自Union 和Vince Neil的乐队），作为乐队巡演时的鼓手
Vancouver, Canada's Theory of a Deadman became the first act to sign with Nickelback frontman Chad Kroeger's 604 Records imprint in 2001. Tyler Connolly (vocals/guitar) reportedly slipped a copy of the band's demo to Kroeger at a post-concert party and the two were soon collaborating on songs together. One of these, "Invisible Man," was used as the B-side for 2002's wildly successful Spider-Man theme, "Hero" (a Kroeger collaboration with Saliva singer Josey Scott), and anticipated Theory of a Deadman's self-titled debut of the same year. Also featuring Dave Brenner (guitar), Dean Back (bass), and Tim Hart (drums), the album's hook-laden, emotional hard rock sounded very similar to their celebrity benefactor's band -- almost disturbingly so, actually. But a healthy touring workload and simple maturation ultimately helped Theory of a Deadman break out of that confining stylistic box for their more varied and distinctive sophomore effort, Gasoline, which was recorded with session drummer Robin Diaz. The trio later tapped veteran journeyman Brent Fitz (formerly of Union and Vince Neil's solo band) as their new permanent touring drummer. Theory of a Deadman returned to the studio in 2007 to record their third album, Scars and Souvenirs, which was produced by Howard Benson. The album was released in April 2008.