Robert Pattinson - the 23 year-old British star of the hit flick 'Twilight' - revealed that he's unsure of the 'post Twilight fame'. According to Now, which quoted Rob's interview with Associated Press, Rob is 'scared about Twilight ending'. He said: "If it suddenly dies down and suddenly no one is interested...yeah, it is worrying. It's scary to think that it all might just fundamentally stop after the Twilight thing's finished." Robert plays the role of Edward Cullen, the vampire who fell in love with a mortal named Bella Swan - played by his real life girlfriend Kristen Stewart.

Photos by: Fame Pictures

Speaking of Kristen Stewart, she is set to visit Jay Leno's 'Tonight Show'. According to Access Hollywood, Kristen is set to appear on Leno's show next week. Other stars who will join Leno next week are Simon Cowell and Kim Kardashian. Kristen is expected to talk about her upcoming film 'The Runaways', where she played the role of the 80s rock superstar Joan Jett.