Jessica's parents -- Tina and Joe Simpson -- are said to be amicably finalizing their divorce. Intriguingly, Tina Simpson is said to be far richer than her estranged hubby. A number of years ago, she and Joe divided up their responsibilities of managing Jessica's career -- with Joe handling her showbiz projects and Tina overseeing the merchandising and endorsement possibilities. Given Jessica's singing and acting have been eclipsed by her endorsement and licensing deals -- which make hundreds of millions -- Tina has really raked in the big bucks.