《I Am...Sasha Fierce》是碧昂丝第三张个人录音室专辑。在这张双碟专辑中，碧昂丝分饰情歌本尊碧昂丝，和舞台上动感的虚拟莎夏(Sasha Fierce)，打破传统发行单曲模式，每次发行两首单曲，上演抒情碧昂丝与动感莎夏的对手戏。

由碧昂丝身份演唱的《I Am...》大胆启用新锐制作Toby Gad(Donna Summer、Natasa Bedingfield)掌控第一主打“If I Were A Boy”，以女人的角度审视男人对爱的态度，感人催泪之演绎获得乐迷广大回响，覆盖大量钢琴和弦乐柔美交织的“Halo”，《I Am…》深深感受碧昂丝光鲜亮丽背后小女人的一面，对爱的渴望、对人的省思、对生活的认真，展现新都会女性自信成熟的态势。

If I were a boy

Even just for a day

I'd roll outta bed in the morning

And throw on what I wanted then go



Drink beer with the guys

And chase after girls

I'd kick it with who I wated

And I'd never get confronted for it.

Cause they'd stick up for me.



If I were a boy

I think I could understand

How it [n_b_s_e_o]0[/n_b_s_e_o] to love a girl

I swear I'd be a better man.

I'd listen to her

Cause I know how it hurts

When you lose the one you wanted

Cause he's taken you for granted

And everything you had got destroyed



If I were a boy

I could turn off my phone

Tell everyone it's broken

So they'd think that I was sleepin' [n_b_s_e_o]1[/n_b_s_e_o]one

I'd put myself first

And make the rules as I go

Cause I know that she'd be faithful

Waitin' for me to come home (to come home)



If I were a boy

I think I could understand

How it [n_b_s_e_o]2[/n_b_s_e_o] to love a girl

I swear I'd be a better man.

I'd listen to her

Cause I know how it hurts

When you lose the one you wanted

Cause he's taken you for granted

And everything you had got destroyed



It's a little too late for you to come back

Say its just a mistake

Think I'd forgive you like that

If you thought I would wait for you

You thought wrong



But you're just a boy

You don't understand

Yeah you don't understand

How it [n_b_s_e_o]3[/n_b_s_e_o] to love a girl someday

You wish you were a better man

You don't listen to her

You don't care how it hurts

Until you lose the one you wanted

Cause you've taken her for granted

And everything you have got destroyed

But you're just a boy