Christina Perri thanks 'Twilight: Breaking Dawn' for 'one of the best weeks'

zap-photo-christina-perri-red-carpet-420.jpg Christina Perri is thanking Team Edward and Team Jacob for what she terms "one of the best weeks of my whole life."

The singer and co-writer of last year's hit "Jar of Hearts" is heard prominently in the movie "The Twilight Saga: Breaking Dawn - Part 1" performing "A Thousand Years," the new love theme of Edward ( Robert Pattinson) and Bella ( Kristen Stewart). Calling herself "the poster child for a Twi-hard," franchise fan Perri was one of the first to see the movie -- performing strongly, not surprisingly, on its opening day (Friday, Nov. 18) -- when she was being considered for its soundtrack.

"I couldn't tell anybody ... it was so awful," Perri recalls to Zap2it. "It seemed everybody else who came to the screening looked a little bored, or maybe they just weren't as Twi-hardy as me. They were reading their BlackBerrys and just looking like they wanted to be somewhere else, and I was sitting in the front row crying and having the best time of my life."

Perri says a lot of security went with the privilege. "I had to sign so much stuff, then I got afraid that there were satellites in the sky that would hear me if I mentioned anything about it out loud! I didn't say a word about it to anybody until the official announcement was made; not my family, not my friends. Otherwise, I wouldn't have been able to stop. I'm a gusher."

Adding that "my heart's just bursting," Perri has had the kind of access any "Twilight" devotee dreams of. "I did the whole promotional tour with the cast before the L.A. premiere, so I was flying around in a private jet with the vampires. It was just so much fun.

"There were moments where I was really trying to breathe normally. I had my geeky little fan moments, then others when I felt I deserved to be there, and then the 'OMG!' moments again. It was a wide range of emotions for me, and now, I can't believe I can say I'm friends with these guys. We all bonded."

"A Thousand Years" soon will serve Perri in another way: She'll perform it on the 13th annual edition of CBS' "A Home for the Holidays" adoption-advocacy special, which Martina McBride will host Wednesday, Dec. 21. And Perri is all but certain to sing it again as a guest on ABC's "Dick Clark's New Year's Rockin' Eve With Ryan Seacrest" Saturday, Dec. 31.

Another bonus of Perri's "Breaking Dawn" involvement is a concert tour she'll begin early in the new year, taking her first to the United Kingdom, Australia and Asia before she starts the U.S. leg toward spring.

"My album [ 'lovestrong'] just went gold in the U.K.," she reports, "so there was movement happening before this, but I feel catapulted to a new level. The exposure is the biggest thing to come from this, but ultimately, it still comes down to doing good songs and working hard."

Photo/Video credit: Newscom