Why do companies use famous people in advertising?

Well, I reckon the reason is quite obvious. Big businesses are exploiting the celebrity's fame as well as their massive fan base. Instead of building the brand from scratch, they could take full advantage of the celebrity to appeal to more customers because people have very good feelings for that famous person. It's also a [...]

For obvious reasons, celebrities represent the public's desires and embody the image that is desirable in the public eye. Celebrities attract a lot of attention, and thus they have a large audience. So endorsing a product can help a company obtain more followers and customers, which can ultimately increase the company's revenue.