The Energizer Bunny was a one-off parody ad that became a 30-year icon

In the late 1980s, Duracell ran a successful advertising campaign featuring a pink toy bunny that beat a drum — and kept going long after other battery-powered toys stopped. The bunny was a demonstration of Duracell's battery life. The campaign was distinctive and well-regarded. Energizer, Duracell's main competitor, was losing market share.

Energizer's advertising agency, DDB Needham, proposed a parody: a commercial that looked like a fake product ad, interrupted by a pink bunny in sunglasses and flip-flops that 'kept going and going and going.' The bunny marched through the frame, disrupting the fake ad. The commercial was meant to be a one-off joke — a spoof of Duracell's serious bunny campaign.

The parody was a hit. Viewers remembered the Energizer Bunny more than Duracell's original bunny. Energizer extended the campaign: the bunny interrupted more fake ads, for fake products, in an endless series. The campaign ran for years. The bunny became a cultural phenomenon — referenced in TV shows, movies, and even the Congressional Record.

The Energizer Bunny became one of the most recognized advertising icons in history. It ran for over 30 years, appearing in hundreds of commercials. The campaign propelled Energizer past Duracell in market share in some categories. A temporary parody — a joke that was never meant to be more than a single commercial — became the longest-running advertising icon in the battery industry.