XXV is the 25th-anniversary studio album by Polish death metal band Vader, released in 2008 by Regain Records. The album is a collection of re-recorded songs from earlier Vader albums, from The Ultimate Incantation up to The Beast. The special edition includes three bonus tracks and a bonus third DVD, with an old and rare live VHS containing footage from throughout the band's career. XXV was recorded between July 2007 and March 2008 at Hertz Studio in Biaà Âystok, Poland and produced by Wojtek and Sà Âawek Wiesà Âawscy. The album is the last Vader release that features guitarist Maurycy "Mauser" Stefanowicz and drummer Dariusz "Daray" Brzozowski, and the only studio recording with bassist Marcin "Novy" Nowak.
The release was preceded by the single "v.666", issued on 15 January 2008. A music video was shot for the song "Carnal", directed by Carlos Abysmo.
Production and performance credits are adapted from the album liner notes.
v.666 is the sixth single by the Polish death metal band Vader. It was released only in Poland on 15 January 2008 by Empire Records. The release features two songs "Carnal (v.666 Version)", and "Vicious Circle (v.666 Version)".