Story behind the lyrics of price tag

You may know Jessie J.Do you know one of her songs called price tag?Well the whole song is about that you don't need money to have fun. Some people take it so serious when it comes to money but we need to slow down and enjoy right now.Here is the song below. What do you think this song is all about?

seems like every body's got a price price
I wonder how they sleep at night
when the sale comes first
and the truth comes second
just stop for a minute and smile

why is everybody so serious
acting so dam mysterious
with shades on there eyes
and your heels so high
that you cant even have a good time

everybody look to there left
everybody look to there right
can you hear that yea were playing with love to night

it not about the money,money,money
we don’t need money,money,money
we just want to make the world dance
forget about the price tag

ain’t about the cha-ching, cha-ching
ain’t about the ba-bling,ba-bling
we just want to make the world dance
forget about the price tag

we need to take it back in time
when music made us all unite
and it wasn’t low blows and the video hoes
am I the only one gettin tired?

why is everybody so obsessed?
money can’t buy as happiness
can we all slow down and enjoy right now
guarantee we’ll be fellin’ alright

everybody look to there left
everybody look to there right
can you hear that yea were playing with love to night

it not about the money,money,money
we don’t need money,money,money
we just want to make the world dance
forget about the price tag

ain’t about the cha-ching, cha-ching
ain’t about the ba-bling,ba-bling
we just want to make the world dance
forget about the price tag

yeah,yeah,well, take the price tag and take the cash back
and give me six strings and half stake
you can keep the cars give me the garage
and all I, all I need are keys and guitars
and guess what in 30seconds I’m leaving to mars
yeah,we leaving across these undefeatable odds
it’s like this man you, can’t put a price on life
we do this for the love, so we fight and sacrifice every night
so we ain’t gon’ stumble and fall, never
waiting to see , a sign of defeat,uh uh
so we gon’ keep everyone moving their feet
so bring back the beat and then everybody sing, it not about

it not about the money,money,money
we don’t need money,money,money
we just want to make the world dance
forget about the price tag

ain’t about the cha-ching, cha-ching
ain’t about the ba-bling,ba-bling
we just want to make the world dance
forget about the price tag
it not about the money,money,money
we don’t need money,money,money
we just want to make the world dance
forget about the price tag

ain’t about the cha-ching, cha-ching
ain’t about the ba-bling,ba-bling
we just want to make the world dance
forget about the price tag

Yeah,Yeah
oh, forget about the price tag