Internet star Grumpy Cat has landed an endorsement deal, with Nestle Purina announcing yesterday (September 17th) that she is now the face of Friskies cat food. Grumpy Cat, a one-and-a-half-year-old mixed breed cat whose real name is Tardar Sauce, has become a big online celebrity thinks to her perpetually dour-looking face. Her Facebook page has more than 1.3 million likes, more than 111,000 people follow her on Twitter, and she has a merchandise line and even a reported movie deal in the works. Grumpy Cat's human is Phoenix resident Tabatha Bundesen.