UnSun was founded by ex-Vader guitarist Mauser and lead vocalist Aya. Originally named Unseen, they later changed their name to UnSun to reflect their blending of death metal influences and melodic vocals. Mauser and Aya added additional musicians to complete the group. In 2007, the group was signed with Mystic Production.
In early 2008, Anna and Maurycy Stefanowicz began writing their first album, The End of Life, which was recorded at Studio-X in 2008, and was released worldwide through Century Media Records on 22 September 2008. The same year UnSun did Black Sun Tour in Poland with Votum and Black River.
The band's record label, Mystic Production, announced in a press statement on 24 June 2010 that the band has begun recording its second album, which is scheduled for release in October 11, 2010. According to a press release, the vocal tracks were recorded at Studio X in Olsztyn and all the instruments were laid down at Hertz Studio (Behemoth, Vader, Decapitated) in Bialystok. The cover artwork was created by Hi-Res Studio, which also handled the band's latest photo session.On october UnSun have been supporting Tristania on the "Rubicon Tour" in Europe.

Source : wikipedia