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Greg Creed

CEO, Taco Bell

The Doritos Locos taco was born out of this Australian executive's challenge to his team to create a breakout innovation to celebrate the fast-food chain's 50th anniversary. Since it launched the Doritos Locos taco in early 2012, Taco Bell has sold more than 450 million. Demand was so strong the company had to hire 15,000 more people to handle sales growth. Creed has a long history with fast food, with stints at Long John Silver, KFC, and Pizza Hut.