Alright its getting late, but I am in the mist of reading a very great architectural publication by Caroline Williams on Fatmid monuments in Cairo. I think I have found the inspiration for the great songstresses chosen title, but I am not sure maybe just a coincidence. Here's the link: http://archnet.org/library/documents/one-document.tcl?document_id=3642
Title: "The Cult of Alid Saints in the Fatimid Monuments of Cairo"
look on the second page 'Mausolea Built Around 1122.'
Really very interesting. Enjoy!!!