According to a research, on average one out of every five advertisements in U.K and one out every four advertisements in U.S, includes a celebrity as an endorser. Not to mention that every fifth ad on global level features a celebrity (1) (honestly these “celebrity people” are making some really big money I am jealous! Don’t tell me you are not!!!).
Okay now let’s talk about effectiveness of these “celebrity people”, As you know the above research is specifically dealing with celebrity endorsing, so let me give you another reference that deals with both (celebrity & expert), according to another research, around 20% of television advertisements in the U.S have some famous person as an endorser (2).