这首歌叫什么？谁唱？

Justin Bieber - Baby

试听：http://v.youku.com/v_show/id_XMTg4MDU4OTAw.html

歌词：
Ohh wooaah（3x）
You know you love me
I know you care
You shout whnever
And I’ll be there
You are my love
You are my heart
And we would never, ever, ever be apart
Are we an item?
Girl quit playing
Were just friends,
What are you saying
So theres another one looks right in my eyes
My first love, broke my heart for the first time
And now I was like
Baby, baby, baby ohh
I'm like
Baby, baby, baby noo
I'm like
Baby, baby, baby ohh
I thought you'd always be mine（mine）
Baby, baby, baby ohh
I'm like
Baby, baby, baby noo
I'm like
Baby, baby, baby ohh
I thought you'd always be mine（mine）
(ohh)For you, I would have done whatever
And now I can't believe we can together
And wanna play it cool
About losing you
I'll buy you anything
I'll buy you any ring
And I'm in pieces
Baby fix me
And you’ll shake me til' you can wake me from this bad dream
I'm going down, down, down ,dooown
And just can't believe my first love will be around
And now I was like
Baby, baby, baby ohh
I'm like
Baby, baby, baby noo
I'm like
Baby, baby, baby ohh
I thought you'd always be mine（mine）
Baby, baby, baby ohh
I'm like
Baby, baby, baby noo
I'm like
Baby, baby, baby ohh
I thought you'd always be mine（mine）
luda, when I was 13 I had my first love,
there was nobody that compared to my baby
and nobody came between us, no-one could ever come above
she had me going crazy, oh I was star-struck,
she woke me up daily, don't need no starbucks.
she made my heart pound, I skip a beat when I see her in the street and
at school on the playground but I really wanna see her on the weekend.
she knows she got me dazing cause she was so amazing
and now my heart is breaking but I just keep on saying….
Baby, baby, baby ohh
I'm like
Baby, baby, baby noo
I'm like
Baby, baby, baby ohh
I thought you'd always be mine（mine）
baby, baby, baby ohh
I'm like
Baby, baby, baby noo
I'm like
Baby, baby, baby ohh
I thought you'd always be mine（mine）
Now I'm all gone
Now I'm all gone
Now I'm all gone
Now I'm all gone, gone, gone, gone
I'm gone