City Councilwoman JoAnn Watson and others gathered downtown Wednesday to pray for Franklin. Last month, the 68-year-old singer announced she was canceling all concert dates and personal appearances through May on the orders of her doctors.
Franklin wasn't at the vigil, but in a statement she thanked the City Council, saying "all prayers are good."
A news release announcing the vigil says Franklin's medical procedure is scheduled for Thursday. A message seeking comment was left with Franklin's publicist, Tracey Jordan.