Marilyn Monroe -- $8 million
No one before or since has embodied Hollywood glamour like iconic sex symbol Marilyn Monroe. Her platinum blonde hair and breathy voice are gold mines for ad campaigns that want to nab the attention of both male and female audiences. General Motors, Absolut, and Dom Perignon have all paid a pretty price for permission to use Monroe in their advertisements. The controversy surrounding Monroe's 1962 death has only served to reinforce her popularity.