The best way to find out booking fees is by contacting the celebrity agent. You will have to provide some context in order to receive this information. Booking fees are not displayed in public.
you should contact her agent for all inquiries. Price will vary, depending on your requirements.
My recommendations is to read this article, before sending email to the agent.
There are many factors that go into pricing. Its best to just ask her agent what the pricing will be for your specific situation. You can get a (very) rough estimate sometimes, if you calculate the capacity of previous performances and ticket prices.
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