这个视屏的背景音乐叫什么名字?

艾薇儿的when you're gone

always needed time on my own
I never thought I'd
Need you there when I cry
And the days feel like years when I'm alone
And the bed where you lie
Is made up on your side
When you walk away
I count the steps that you take
Do you see how much I need you right now
When you're gone
The pieces of my heart are missing you
When you're gone
The face I came to know is missing too
When you're gone
The words I need to hear to always get me through the day
And make it OK
I miss you
I've never felt this way before
Everything that I do
Reminds me of you
And the clothes you left
They lie on the floor
And they smell just like you
I love the things that you do
When you walk away
I count the steps that you take
Do you see how much I need you right now
When you're gone
The pieces of my heart are missin