Dark Tranquillity formed in 1989 as Septic Broiler before changing their name in 1991. They are considered to be one of the earliest pioneers of the Gothenburg melodic death metal style. They have kept a mostly consistent line-up. Rhythm guitarist Mikael Stanne switched to vocals after Anders Fridén's departure. When his replacement Fredrik Johansson left in 1998 bassist Martin Henriksson took up guitar duties and Michael Nicklasson came in on bass. They also added "electronics" man Martin Brändström at this time. Michael Nicklasson left the band on 23rd of August 2008.

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