Was the lead singer of a big band in 1992, and went on a tour in Canada.Used to play in a punk band called "Leck mich am Arsch".She studied acting at Hamburg's Stage School of Music, Dance and DramaHas two daughters with Jan Josef Liefers: Lilly Anna Sophia (born 30 October 2002) and Lola Marie Josefine (born 28 February 2008).

Anna Loos has appeared nude in Das sündige Mädchen, and Halt mich fest!.