"It's just the gift that keeps on giving," the singer-songwriter said of her hit song on 'The Nikki & Brie Show' ...
Related: Christina Perri Says 'Healing' Happened When Daughter Carmella First Held Baby Sister ... "They know the song, too. I sing it to them all the time. It's a pretty cool thing to show ...
Christina Perri approves of Twilight fans using her hit track as their wedding song. Perri wrote "A Thousand ... who shares daughters Pixie Rose and Carmella Stanley with husband Paul Costabile.