Hellmann's whips up campaign for centennial

Published: .
Updated: .

Unilever is gearing up to celebrate the 100th birthday of Hellmann's mayonnaise.

The Dutch company is launching its biggest marketing campaign ever to celebrate America's top-selling mayonnaise. It will include TV, print and digital ads, a Facebook page, a smartphone app, YouTube videos featuring chef Mario Batali cooking up Hellmann's recipes, and a September event that will include the world's largest picnic table.

(Copyright 2013 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.)