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In this photo provided by NBC Universal, actress Kristen Stewart appears on NBC's "Today" show, in New York, on Wednesday, Nov. 18, 2009. (AP Photo/NBC, Peter Kramer)

In this photo provided by NBC Universal, Musician Jon Bon Jovi appears on NBC's "Today" show to talk about his new album "The Circle", in New York, on Wednesday, Nov. 18, 2009. (AP Photo/NBC, Peter Kramer)

In this photo provided by NBC Universal, TV personality Martha Stewart and "Today" show host Meredith Vieira have a apple pie bake off on NBC's "Today" show, in New York, on Wednesday, Nov. 18, 2009. (AP Photo/NBC, Peter Kramer)

In this photo provided by NBC Universal, actress Nia Vardalos appears on NBC's "Today" show, in New York, on Wednesday, Nov. 18, 2009. (AP Photo/NBC, Peter Kramer)

In this photo provided by NBC Universal, co-host Matt Lauer, left, poses for a picture with actor Robert Pattinson on NBC's "Today" show, in New York, on Thursday, Nov. 19, 2009. (AP Photo/NBC, Peter Kramer)

In this photo provided by NBC Universal, co-host Matt Lauer, left, talks with actor Robert Pattinson about his new movie "The Twilight Saga: New Moon" on NBC's "Today" show, in New York, on Thursday, Nov. 19, 2009. (AP Photo/NBC, Peter Kramer)

In this photo provided by NBC Universal, co-host Matt Lauer, left, poses for a picture with actor Robert Pattinson on NBC's "Today" show, in New York, on Thursday, Nov. 19, 2009. (AP Photo/NBC, Peter Kramer)

In this photo provided by NBC Universal, actress Kristen Stewart appears on NBC's "Today" show, in New York, on Wednesday, Nov. 18, 2009. (AP Photo/NBC, Peter Kramer)