Twilight's vampire hunk, Robert Pattinson cleared out all the nasty rumors  that have been circling around to Matt Lauer on the "Today" show this morning. Pattinson answered questions about his alleged relationship, and engagement to co-star Kristen Stewart,  Getting hit by a cab, and the rumor of his drug overdose. Pattinson also took time to explain how he is thankful  for all the attention he has receive ...