A loosely defined sub-style of hardcore which almost completely eschews traditional song structure in favor of an all-out blitz-speed musical attack. More well-known power violence bands include Infest, Spazz, and Scholastic Deth.
That band is more grindcore than power violence, but they use elements of both.
Stage name of German singer/actress Christa Päffgen. She is most famous for having been a part of the Velvet Underground for a while (appearing on their first album), and for her first solo record, Chelsea Girl. Died in 1988.
Nico's voice was pretty weird, but I still ike it.