Sissy Spacek is one of these three artists:

1) Sissy Spacek is John Wiese and Charlie Mumma (Human Agony, ex-Knelt Rote). Based out of LA, their music goes from harsh noise and noisecore to musique concrète and free improvisation.

2) It may also be a hi-fi ambient art-pop band (late 90's-2002) from Helsinki, Finland.

3) http://en.wikipedia.org/wiki/Sissy_Spacek
Mary Elizabeth "Sissy" Spacek (born December 25, 1949) is an Academy Award–winning American actress and singer. Her screen début was in the 1972 film Prime Cut co-starring Lee Marvin and Gene Hackman. She released a country album, 'Hangin' Up My Heart' in 1983. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.