The "You're Not You When You're Hungry" campaign by Snickers is one of the most iconic and successful advertising campaigns in recent years. Snickers is a popular chocolate bar produced by Mars, Incorporated, and this campaign aimed to position Snickers as the solution to hunger-induced personality changes in a humorous and memorable way.

Campaign Concept:
The core concept of the campaign is based on the idea that when people are hungry, they become irritable, grumpy, and act out of character. Snickers suggests that consuming their product can quickly alleviate hunger and return people to their normal, more pleasant selves.

Execution:
The campaign was launched through a series of TV commercials, print advertisements, and online content. The commercials typically feature a scenario in which someone is behaving strangely or inappropriately due to hunger. This person is then given a Snickers bar, which instantly transforms them back into their normal self, usually accompanied by the tagline: "You're Not You When You're Hungry."

The campaign also introduced the idea of "Snickers satisfaction" by showing people taking a bite of the chocolate bar and experiencing an immediate improvement in their mood and behavior.

Humor and Celebrity Endorsements:
A significant aspect of the campaign's success is its use of humor. The scenarios depicted in the commercials are often exaggerated and absurd, making them entertaining to watch. Additionally, Snickers enlisted well-known celebrities to play the roles of hungry individuals in their commercials. Notable personalities like Betty White, Joe Pesci, and Robin Williams have appeared in these ads, adding to their appeal and memorability.

Cultural Impact:
The "You're Not You When You're Hungry" campaign has had a lasting impact on popular culture. It has become a catchphrase used in everyday conversation to humorously explain someone's odd behavior or irritability. The campaign's success has also led to the creation of various spin-off ads and content over the years.

Consistency and Evolution:
While the core concept of the campaign has remained consistent, Snickers has also evolved it over time to keep it fresh and relevant. They've created various versions of the commercials, introduced limited-edition Snickers bars, and adapted the campaign for specific events or holidays.

Overall, the Snickers "You're Not You When You're Hungry" campaign is a prime example of effective advertising. It uses humor, relatability, and a simple message to connect with consumers, making Snickers a go-to choice for satisfying hunger and improving mood. The campaign's longevity and cultural impact demonstrate its enduring success in the world of advertising.