I want to know what kind of jobs can I get with a degree in Business Administration?

I really want to specialize in Public Relation, but later on down the line I would love to open a clothing store with that business degree also! So I wanted to know how much does a PR start off making? Is it hard to find a job in PR? What would be the best state to move to for PR, (I want to do work for celebrities and major companies?) Or is it better just to go into becoming an Hr Manager! The thing is I love fashion and traveling but fashion doesn't pay enough and I know with PR I can get money overtime like 10 years and it seems like a fun job.. Please Help!