Again through their agent, (or try speaking with an advertising agency) but ensure its an appropriate "fit", just parachuting a celebrity doesn't mean instant success, just more celebrity recognition,
Do you mean for the celeb to endorse your product
Contact the celeb's manager and see what the charges are....millions most likely
Try their agents.
1. Agency
2. PR reps
3. Their managers
Write a pitch letter and tell ppl why they should come.
You would certainly have to go through their business agent, they could be quite expensive, acting as a partner in the business in some cases. They typically have the leverage in negotiations, a formal written proposal may be expected.
There is a directory of celebrity agents, whorepresents.com
It is not going to happen. These people charge Millions to have their name used for products.
How much money have you got?
UK
I want to meet a celebrity to give him/her an offer to advertize for my business. Please help me how to go about this.