Well, It only says "once owned by Whitney Houston", probably the first 6 months or year of the car's life. Since then it has probably had multiple "nobody" owners, so any stardust has blown off of it by now.
FWIW, back in 1990 when this car was new, Whitney was still a little goody-two-shoes, at least in image. That was before Bobby Brown got ahold of her and showed her a way to spend some of those $$zillions, you know, cars, blow, lawyers, doctors, etc...
