100th Window is the fourth studio album by English electronic music group Massive Attack, released on February 10, 2003 by Virgin Records. Of the group's original core line-up, the album only features Robert Del Naja; Andrew Vowles departed shortly after the release of the group's previous album Mezzanine, and Grant Marshall refused to participate in the making of the record. 100th Window was written and produced by Del Naja and Neil Davidge, and features vocals from Horace Andy, Sinéad O'Connor and Damon Albarn (performing as 2D from Gorillaz). It is also the first album by the group that makes no use of samples and contains none of the jazz or jazz fusion stylings of the group's first two albums Blue Lines or Protection. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.