Pop star Kelly Clarkson is so hooked on STEPHENIE MEYERS' TWILIGHT books, they're keeping her up at night.
The Since U Been Gone singer can't put the vampire love stories down.
She says, "I'm on Breaking Dawn. It's actually interrupting my sleeping pattern... I'm crazy.
"Every girl is, like, obsessed. I went to Cancun, Mexico for New Years with a bunch of friends and we were laughing because, as we were laying out (sunbathing), literally every female at the pool had one of the books from the Twilight series."