Which food brand collaboration launched a limited-edition 'Doritos Locos Tacos' that became one of the most successful fast-food innovations, selling over a billion units within its first year?

Test your knowledge about some of the most interesting and unexpected food brand collaborations in recent years! Food companies are increasingly partnering with other brands to create innovative products, expand their reach, and generate buzz. Some collaborations have become legendary while others surprised consumers. Can you identify this famous culinary partnership?

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Taco Bell × Doritos
McDonald's × Frito-Lay
Chipotle × PepsiCo
KFC × Cheetos