Taylor Swift has a new relationship to sing about...Diet Coke.
The singer will be the new face of the soda brand as part of a long-term deal.
Coca-Cola announced Swift will be featured in TV, print and digital advertising, beginning this spring.
Diet Coke will also be used in social media campaigns with the Grammy winner.
The company will also give fans rare access to her upcoming Red concert tour, which kicks off in March.