What key details about anna r.  can be extracted from the following bio?  Bio: andrea neuenhofen -lrb- née rosenbaum , born 25 december 1969 -rrb- , better known by her stage name anna r. , is a german singer and songwriter who provides the lead vocals for german pop group gleis 8 . she was previously the main vocalist of rosenstolz , a german pop duo that was active between 1991 and 2012 and had chart hits in germany , austria and switzerland .
The answer to this question is:
- website is de- years active is 1991 -- present- label is pool universal -rrb- , beaux -lrb- traumton -rrb- , polydor/island -lrb-- genre is pop- birth date is 25 december 1969- name is anna r.- image is rosenstolz anna r.jpg- birth place is berlin , germany- associated acts is rosenstolz , gleis 8- occupation is singer , songwriter