Robert Pattinson paid a recent visit to Ellen DeGeneres's studio yesterday to discuss his upcoming role in Water for Elephants for an interview that airs this afternoon. He's been in LA since earlier this week, when he stepped out and showed off his new short haircut. Rob joked with Ellen that he had to chop off his locks due to a case of head lice, but she discouraged him from starting that rumor! He did share about being impulsive, saying, "I just like doing things where you have a little time to think about what you're saying. I've always had a problem actually thinking before I open my mouth." Rob also talked about his lack of deep thoughts and what he made of being on People's list of the year's Most Beautiful People.