Danny DeVito leads the cast of 3D animated characters in the upcoming adaption of Dr. Seuss's The Lorax. He voices The Lorax, a mythical creature sent to protect the forest of Truffula Trees against Ed Helms's character, the Once-ler. We sat down with Danny at the film's LA junket and he shared his thoughts on the "sweet" Taylor Swift, and what we might see next season on It's Always Sunny in Philadelphia. Check out our interview and catch The Lorax in theaters on March 2.