What song is this from?

It's bothering me necause I can't remember what song this is or who
it's by. I know the singer is female and it's a fairly new song, but I
can't remember anything more >_ < Please Help!

It's at about :47 in this vid n continues on for a little less than a
minute, I think they may slow it down a bit, even though it's already
a pretty slow song.

http://www.youtube.com/user/JckSparrow#p/u/4/JKn5XA4h-Ks

Thank you!