When I think of Hollywood I think of actors, not singers, but who knows.
I find it interesting that she doesn't have a website. Keep in mind that many authors go under pen names, so this might not be her real name. Or, if she is using her real name then it might be her married name, in which case, you might not be able to connect her name with her Hollywood family's name. And, then, there's the case that she and her Hollywood family members might not have the same surname, for instance, Angelina Jolie doesn't carry her famous father's last name, John Voight (I think that's how its spelled).
If you're finding this information hard to find then there's a reason for it and it's done on purpose.