Endorsements are a manifestation of promotion that uses well-known identities or big names that create a high level of recognition, trust and appreciation or mindfulness among people. These people promote an item by lending their name or photo to advertise an item or organization. Sponsors and customers are confident that such support, or underwriting by a celebrity, will have a positive impact on buyers. There are many risks associated with relying on celebrity endorsements, but group research for Nike has proven that the rewards outweigh the risks. This type of advertising is most relevant to the people the company sells to. Ordinary people won't have much impact on a product. Celebrities are famous and people admire them. These ads will work well for a brand's aspiration. Therefore, the more famous the endorser, the more expensive the product will be. Nike enjoys many celebrity endorsements. The American sports brand is the largest in the world with a total value of around 49 billion. Here are the 11 best celebrity endorsement deals Nike has made over the years.1. Micah...