Formed in 2002 and releasing various recordings via smaller indie labels, they came out with their first non-indie debut via Victory Records in October 2008. Switchblade Serenades reached number 107 on Top Heatseekers first week of release in the US. The band performed two US national tours in support of the album, with bands like Motörhead, Otep, and Ill Niño. Sister Sin also toured Europe with Arch Enemy and played at festivals like Sweden Rock, Norway Rock, before entering the studio in early 2010 to record a followup album entitled “True Sound Of The Underground” with producer Henrik Edenhed (Dead by April,Lambretta, etc.)
Later that year the band parted ways with bassist Benton Wiberg, due to his inability to tour. The band recruited Strandh as a new bassist and toured Europe with LORDI. Two US tours followed, first with Straight Line Stitch, System Divide and In This Moment. Then with Blackguard, Destrophy and Otep.