Christina Perri is an American singer-songwriter, and musician. She debuted her song single Jar of Hearts. It sold over 3 million copies in the United States. She debuted her album Lovestrong on May 10, 2011. She recorded and wrote the song A Thousand Years for the film, The Twilight Saga: Breaking Dawn, part 2 (2012). Her second album Head or Heart was released on April 1, 2014.