Two things:
1. It was written in 2005
2. Your question SHOULD say "When was Beat of Your Heart WRITTEN by Hillary Duff?" not "When was beat of your heart wrote by Hilary Duff?" no offense, but that is horrible grammar!
I think the answer is within the question.
wHo iS Hilary Duff dAD??
CHARLIE MIDNIGHT GIVE THE MUSIC AND WROTE THE LYRICS OF WHY NOT
Hilary duff.
Hilary Duff's birth name is Hilary Erhard Duff.
Hilary Duff's middle name is Erhard. Hilary Erhard Duff
Hilary Duff was born in Houston, Texas.
Hilary Erhard Duff
Hilary Duff's Twitter is @HILARYDUFF
No Hilary Duff is not a boy she is a girl.
Hilary Duff's last name is (unsurprisingly) Duff.
Hilary Duff's father's name is Bob Duff