Jessie J's "Price Tag"

Listen to the song in the video. What do you think the song is about?

 
Now try to fill in the gaps with the following words:

serious, time, second, high,  left, got, love, smile, first, right

Okay, Coconut man, Moon Heads and Pea
You ready ?

Seems like everybody's _____________ a price,
I wonder how they sleep at night.
When the sale comes ___________,
And the truth comes ___________ ,
Just stop for a minute and _____________

Why is everybody so _____________?
Acting so damn mysterious
Got your shades on your eyes
And your heels so ___________
That you can't even have a good _________________

Everybody look to their ____________ 
Everybody look to the ___________
Can you feel that (yeah)
We're paying with ___________tonight

can, when, don't,  dance x2, happiness,why,  alright, not, am

It's ___________about the money, money, money
We ___________ need your money, money, money
We just wanna make the world __________,
Forget about the price tag
Ain't about the (uh) Cha-Ching Cha-Ching.
Aint about the (yeah) Ba-Bling Ba-Bling
Wanna make the world ____________,
Forget about the Price Tag.

Okay!
We need to take it back in time,
__________music made us all unite
And it wasn't low blows and video hoes,
____________ I the only one getting tired?
__________ is everybody so obsessed?
Money can't buy us _____________
_________ we all slow down and enjoy right now?
Guarantee we'll be feeling ___________.

Everybody look to their....

What do you think she refers to when she says "Cha-Ching Cha-Ching"? What about "Ba-Bling Ba-Bling"?

Now, this is a little bit difficult. There are eight wrong words, can you find them?

[B.o.B] 

Yeah yeah, well, keep the price tag, 

and take the bagpack,

just give me six strings and a half stack. 

And you can clean the car, leave me the garage

And all I... yes all I read are keys and guitars, 

and it's within 30 minutes I'm leaving to Mars!

Yeah, we're leaping across these undefeatable odds.

It's like this man, you can't put a price on life, naha!

We do this for the love so we fight and sacrifice tonight

So we aint gon stumble and fall, clever

Waiting to see this in the sign of defeat, uh uh

So we fon keep everyone moving their fat

so bring back the beat and then everyone scream:

It's not about the money, money, money...

What do you think these expressions below mean?
six strings =____________
keys =__________
I'm leaving to Mars =______________
you can't put a price on the life =___________

naha= __________

Now translate into "proper" English the following:
So we aint gon stumble and fall = ________________________________
So we gon keep everyone moving their feet  = ________________________________