They even must share whether they belong to Weight Watchers, the diet program for which Hudson has been a spokeswoman for several years.
Balfour, 30, is charged with fatally shooting Hudson's mother, Darnell Donerson, and her brother, Jason Hudson, in their South Side home in October 2008. He is also accused him of kidnapping and killing Hudson's nephew Julian King, 7.
Hudson, who won an Oscar in 2007 for her role in "Dreamgirls," plays a major part in the questionnaire with prospective jurors being asked among the following:
•Have you ever seen a movie in which Jennifer Hudson played any role?
•Have you ever seen Jennifer Hudson perform in person?
•Do you belong to any organization for which Jennifer Hudson is a spokesperson?
•Have you ever read a magazine or newspaper interview with Jennifer Hudson or an article about Jennifer Hudson or heard or seen a television or radio interview with Jennifer Hudson?
The questionnaires also ask potential jurors for their views on guns and illicit drugs, two issues that are expected to surface in testimony about Balfour and Hudson's brother, Jason.
Prospective jurors will discuss their answers individually with Cook County Judge Charles Burns and attorneys for both sides when jury selection begins in earnest Monday.
Burns has ordered that the identities of the jurors and their answers be kept secret until after a verdict has been reached.
Opening statements are scheduled to take place April 23.