Final answer:
The "I'm lovin' it" tagline was created by a German agency. McDonald's exemplifies the phenomenon of global business influence and cultural diffusion, known as McDonaldization.
Step-by-step explanation:
The "I'm lovin' it" tagline for McDonald's was devised by a German advertising agency. This piece of information is associated with McDonald's global influence and marketing strategies, providing insight into the company's efforts to resonate with a worldwide audience. As McDonald's is a large globalized business, its presence can be found in almost every country in the world, including notable examples such as Moscow, Russia, and Egypt. The success of McDonald's globally demonstrates the concept known as McDonaldization of society, where the principles of the fast-food restaurant are becoming dominant in other sectors of society and other parts of the world.
The widespread popularity and cultural impact of McDonald's worldwide signals the power of American corporate culture, including the appeal of the American Dream, and indeed the influence of the English language and US corporations on the internet and global media.