A parody of Justin.. orginal song is "AllStar" by Smashmouth.
From Flag786

Somebody once told me da world is gonna love me
I'd have da finest girls and a Benz
But she was looking kinda dumb when she posed in Rolling Stone
With less clothes than could cover her forehead

Well, da hos start comin' and dey don't stop comin'
Look in da mirror and it's me I'm lovin'
Didn't make sense just to sing for fun,
Your pockets get fat but your head gets dumb
So much baby blue, so much for me
So why some of ya'll still like the Backstreets?
Ya'll musta never seen mah show
Ya'll never laid eyes on dis fine bro

Hey now, ah'm an All Star, get mah mack on, all day
Hey now, ah'm a Pop Star, get mah show on, get paid,
Those other four need to be told
Only ass like dis, gets seats sold

Ah'm a rude boy, got a chip on my shoulder
And I got the cute face cuz the rest are all older
Don't even try to step and beg to differ
Judging by the signs chick hold wit mah picture
The hair ah've got is far from bein thin
But choo all like my fro so it's stayin' like it is
Mah world's on fire, how about yours?
Cuz that's the way ah like it when ah'm gettin all the whores

Hey now, ah'm an All Star, get mah mack on, all day
Hey now, ah'm a Pop Star, get mah show on, get paid,
Those other four need to be told
Only ass like dis....

Somebody once asked could I spare some change perhaps
They want to get a necklace big as they face
I said NOPE, but what a concept, I could use some tacky jewels myself
Say JRT cause you all know mah name

Well, da hos start comin' and dey don't stop comin'
Look in da mirror and it's me I'm lovin'
Didn't make sense just to sing for fun,
Your pockets get fat but your head gets dumb
So much baby blue, so much for me
So why some of ya'll still like the Backstreets?
Ya'll musta never seen mah show
Ya'll never laid eyes on dis fine bro

Hey now, ah'm an All Star, get mah mack on, all day
Hey now, ah'm a Pop Star, get mah show on, get paid,
Those other four need to be told
Only ass like dis gets seats sold
Those other four need to be told
Only ass like dis gets seats sold