What should I wear for a glamour photo shoot?

I'm gonna model for a beauty/glamour type photo shoot with a photographer next week. I've never done this style of modeling before. What should I wear? Not really sure how you define that style. Is it just dresses, skirts, heels, etc? Can it be nice jeans and a nice top with some heels or would that be considered casual? What's the difference between fashion and glamour photos?