View Post Agencies | Brands | Campaigns | Social Media | What The?? Hill Holliday Producer Raps to Promote ‘Tweethearts’ for NECCO By Erik Oster on Jan. 16, 2014 - 4:53 PM Hill Holliday has a new campaign for NECCO’s classic Sweethearts, “#1 selling non-chocolate Valentine’s Day candy,” that personalizes the messages on the candy hearts via Twitter. Here’s how it works: s ...
