>> ^EndAll:
is the girl at the very end of the video the actual singer?


Yes, that is Karin Dreijer Andersson

The Knife is an electronic indie duo from Sweden formed in 1999. The band consists of brother and sister Karin Dreijer Andersson and Olof Dreijer.

One of the group's distinguishing characteristics is their unwillingness to cooperate with the media or the mainstream music scene. The group rarely makes public appearances, most of their promotional photos feature the members wearing masks, and until recently, they outright refused to perform live concerts.

The group gained greater notoriety in late 2005 when José González covered "Heartbeats" on his 2003 album, Veneer. The song was then used for Sony's Color Like No Other BRAVIA commercial and was released as a single in early 2006.

The Knife's song "We Share Our Mother's Health" from their album, Silent Shout, was featured by the iTunes store as a free song of the week in late 2006. Another video is avaliable on the sift for "Like a pen".