Successful Advertising Campaign Analysis McDonald's "I'm Lovin' It" campaign, launched in 2003, is one of the most successful global advertising campaigns in history. The slogan, jingle, and catchy tune quickly became iconic, and the campaign featured numerous celebrity endorsements, including Justin Timberlake, LeBron James, and Mariah Carey. The campaign was designed to appeal to a wide demographic, focusing on the emotional connection people have with food and the McDonald's brand