To coincide with the 50th anniversary of Taco Bell, Doritos and Taco Bell partnered to form the Doritos Locos Tacos, introduced on March 8, 2012. The taco is a standard Crunchy Taco. The taco comes either as a Doritos Locos Taco Supreme (ground beef, lettuce, diced tomatoes, shredded cheese, and sour cream), or a Regular Doritos Locos Taco (ground beef, lettuce, and shredded cheese), but the taco shell is made out of Nacho Cheese Doritos. From 1978 to 1997, both Taco Bell and Doritos were under the same corporate umbrella within PepsiCo until PepsiCo spun off its restaurant business into what would eventually become what is now Yum! Brands.