According to Billboard:
Perri is back on the Hot 100 with “A Thousand Years, Pt. 2″ featuring Steve Kazee, the only track on “Twilight Saga — Breaking Dawn Pt. 2″ available for purchase a la carte. It debuted last week on Hot Digital Songs at No. 13 with 70,000 downloads sold, according to Nielsen SoundScan.
Her original solo version, from the “Breaking Dawn: Part 1″ soundtrack, cracked the 2 million sold mark last week and is now at 2.1 million. It trails her biggest hit, “Jar of Hearts” from her debut album, “lovestrong.”; the single has sold 3.3 million copies.
“I always wanted it to be a duet,” she says, “because that’s the way I wrote it – part Edward and part for Bella. I got to add a verse and then arrange it with a full orchestra with David Campbell. Being able to re-do it – I was incredibly blown away. When I went to the premiere, it felt more like everyone’s song – it’s for the whole franchise. I’m really honored.”