3) Chimaira

[youtube]http://youtu.be/s-AMAIUBBhU[/youtube]

When Chimaira released their first material, the This Present Darkness EP and Pass Out of Existence LP, they were little more than a glorified nu-metal band, comparable to Mudvayne and Slipknot at the time. The Impossibility of Reason began the transition for them into a full-on metal band, a position they secured on their self-titled album and Resurrection. Their last three albums have only gotten heavier and more groove-laden, even dabbling in sludge and death metal at times. Without a doubt, Chimaira keeps their promises about each album being heavier than the last!