OK, let's have a show of hands. For "I'm Not Living Without You" do you prefer the Jennifer Hudson on the classic Jennifer Holliday version? You are required to listen to both before voting.
They are both named Jennifer, Earthling! Jennifer Holliday sang the song first on Broadway and Jennifer Hudson sang the song in December in the still-running movie.
Billie Holliday died without issue and Holliday was not her family name so I doubt she is related to Jennifer Holliday. Plus, they look nothing alike. Billie was form Baltimore and Jennifer, I believe, is southern. Anything is possible, however. After all, Rosey Grier and Pam Grier are cousins.