Backstreet Boys - If I Knew Then

[THEDAVIDBSB]

I LIKE IT !!!! BSB MUSIC FOREVER!!!!

[yaki1193]

i <3 the pic at 1:05

[NUTTSGAMERZ]

BSB ARE AMAZING BOYSBAND!!!!!

[NUTTSGAMERZ]

THIS IS US ALBUM IS TOPPPPP

[NUTTSGAMERZ]

AJ VOICE ARE GREAT IN THIS SONG

[THEDAVIDBSB]

i LIKE THIS SONG!!!!!!!!!! great BSB!!!!!!!!!

[supakiwibaby]

Love it!

[angedeboyas]

00:35 brian was so cute! and still continue! love love love! <3

[MegaSarcastica]

I was up close and personal with that necklace around the neck of AJ. wow!

[richierobertino]

all the above all the above from T-pain , nice i used the same sound and beat for my track.. nice

[richierobertino]

all the above all the above , nice i used the same sound and beat for my track.. nice

[brrrrrrrratt]

BSB BABY! :D

[allie051786]

LOVE IT!!!!!!!!!!! This whole CD is great! I heart BSB, but especially AJ! :)

[christine4863]

good song

[Loopdelois]

@karleebear1

it's his brother if im not wrong

[sugarstickable]

nice

[iloveyouxbill]

is this the new single after bigger?when its come s out?

[Loopdelois]

@musicstar315

haha okee u needed to know who sings what right? well check out a live thing then u see it nnndoeoideoideoidoeid

[BSBTCATWTGRIL]

love theeem soo much forever:)

[kidlaughsalot]

i think claude kelly's version is pretty awesome but the backstreet boys version is a little better :)

[marianne808]

@kidlaughsalot not even close u need check ur ear cause something wrong with ur hearing. it backstreet boys that is the real reason u thing it better but it dosen't sound better so check ur hearing.

[MissJuliaBwo]

haha love that pictuter 1:13 XD

[MrAdelen09]

Love this song <3

[togitogitogitogi]

rock shaax ni chinii tneges shvv bi hen bn aalzaa

[carolzinhaah156]

Gosh, the name of the music is wrong, the name is: If I Knew Then ...

it's amazingo song *--*

[togitogitogitogi]

i just hate jusin bieber i hate him if he will get talented than MJ

[GavinWonreyMusic]

yeah claude´s version is much better

but hell he decides to give his song away

god knows why..

[tank1984]

I miss Kevin :(

It's just not the same with out him

KTBSPA!

[NEXPAR]

Claude who?

HaHa, but I am not familiar with that artist. What type of music does he/she do?

[GavinWonreyMusic]

claude kelly is a famous songwriter

who wrote songz for the backstreetboys, britney spears, kelly clarkson, leona lewis etc.. en the best part of him is that he has a amazing voice you should here his version !

[reeceshift]

He does RnB && Hip-Hop.

He's very talented && amazing.

He does manyy songs for other artists such as Justin Timberlake && Jess McCartney.

[misssexiee001]

claude kellys version is alot better ii must sayy :P

[Sara95RBD]

That is so cool!Uau! :DDDDDD

[4BackstreetBoys]

this is us is a great album

[don145arsenal]

i prefer claude kellys version personally. he wrote the song and the lyrics are dope. luv it

[4BackstreetBoys]

yeah claude kelly wrote this song everybody knows, but they sing it much better

[chrisladturbo]

i dont agree, i prefer this is us, they need to get with the times n rnb is current.

[thebackstreetfan]

this is us is a very great album one of my favorites, and not only mine

[thebackstreetfan]

this will be the new single!! howie said it

[chrisladturbo]

request this on galaxy radio (uk) as it is on there playlist!!!

[stupidkidd1]

WOw I WOuld Have Never ThOuqht They Sanq This SOnq;*_

[mayamiteva]

I agree that this song and masquerade should have been included in the concert; i think though that they sang a lot of old song to remind us who they are and to tell us that they are the same guys just a lil bit grown up.. like ourselves.. I saw them last nait and it was a dream come true! PEACE; Love BSB forever

[skillsmills3]

Claude Kelly Wrote This Song For Them...

He Is A Dope Songwriter!

[loveliuying]

i love this song sooooo! Why didn't they sing it live, i wonder? :l And the song Masquerade is awesome too.

[jcvdjfr]

thanks so much for your video im a french fan boy of them with my brother and my band of music , we saw them 3 week ago in spain it was wonderful

[MsHibah]

nice song realy

but wher is kevin he is not in the new video???

[OMGitsathing]

not in the band anymore soz to break the newa to u

[yan9322]

backstreet boys FOREVER!!

[vincefan1515]

does anyone know if this is on the new album or not i looked on itunes and it didnt look like it but i could of over looked it

[Macieclassof2009]

yes it is and the album is awesome!!!!!

[janee7791]

yes, it's on the new album.

[packers890]

i freakin love this song and well.. the whole cd of this is us...

BACK STREET IS BACK!!!!

THE BEST GROUP OF ALL TIME!!!!

[lesliecarterworld]

I remember when Aaron was playing me this song and he was doing the "chicken head" on the part "what i know now" freaking hilarious!

[yorkiekompis]

good bsb has a new album.i just looooooooooooooove it <3<3<3

[iwdnplay]

A.J. FOREVER!!!!!!!

[stuninn337ldyy]

i love this songg!

too raw too raww!!!

[itsuki31]

i don't know if this song are on the new album, i don't see this title on the web! there are 11 titles and this are not over, iam sad, no "hologram",no "fallen angel",i am very disappointed!!! maybe i wrong, just wait 6october, but i hope there are bonus songs!! (sorry for my english xD) thanks for posting!! :)

[preciousCece]

i'm loving their new songs - a much more mature sound ...

[singer2life]

is this off of "This Is Us" ?

[Emmelding16]

the backstreet boys are really great,

but if I'm honest I would prefer the original version of Claude Kelly.

[Delo3a]

LOVEEEEE AJ'S VOICE!!!!

[maryrocks910]

i love it too but he needs to stop smoking it could really hurt him

[ChasezsGirl]

I LOVE THIS SONG! can't wait for the CD! it's gonna be a great CD! hopefully #1!

[inahboi]

cant wait

[Calabrese4ever]

I love you AJ..<3

can't wait for the album..:P

[chaldobabi4life]

ahh omgg aj's pic lol plus he sounds good

[gaasasu33]

I love Backstreet Boys!!! The song is amazing! <3

[betty15boop]

i am in love with this song the album is going to be amazing :D

[EdwardBella4Eva1994]

Amazing song! Can't wait for the new album!

[shellxxxxxxxx]

now called 'if i knew then! 'number 5 on new album. awesome song!

[idaismyname]

bestbestbestbestbestbestbestbe­stbestbestbest! LOVE this song! BSB IIIIIIIIIIIIIIS BEST!

[chrisanimelo444]

Omg... I love this song!!!

[inahboi]

ya, hope this would be the next single

[FreakOfMusic2008]

Think this one of the best songs they ever had!!!! Hope they will release it as a single XD

[Calabrese4ever]

wooow...I love this song..:D

I love aj's voice..!!!!:P

backstreet boys 4 everrr..!!!!<3

[4everincomplete]

AJ sounds amazing in this song!

[amypooskey]

i hope this song is on the album. its amazing.

[24Albo]

Yes it is ! In my opinion this song is better that Bye Bye Love....

[TheJd2786]

Hope it's on the album

[AngelofMusic5893]

I'm sorry, but the Backstreet Boy's version of anything is sooooo much better...they are amazing at everything, a million times better than claude kelly...KTBSPA <33 :))

[zdiiriye]

Claude Kelly's version is just the demo..he wrote the song for them..IDIOT!! And of course his version is better!!

[AngelofMusic5893]

okay dude, chill out lmao :P

[zdiiriye]

W.e you're a retard...comparing the demo and the song! Tsk tsk tsk dumb deaf cunt!!!

[HuyBui1123Porsche]

this is a great song but in my opinion the producer, Claude Kelly sang it a whole lot better.

[fetez1]

Im still disappointed. ANY leaked song would have been a better choice as a 1st single than straight through my heart.

[TheJd2786]

Yeah, the video for masquerade would have been epic.

[fetez1]

yep definitely

[tatanodix]

a LOVE this song a think that it will be a great success AJ aLOVE you're voice

 BSB FOR EVER

[iluvnizzlejizzle]

great song!!!!! i love it!

[jpbaby123]

is that a new pic of AJ

[arnofourie]

that would be millenium time frame :)

[fetez1]

Sadly, it isnt. he was hot back then

[r4ng32k0]

i love this song!!!

[viviDAMNly]

claude kelly sang it better;

[brrrrrrrr]

SK Represent :D XD

[SumDayIWill]

well, the photos are FANTASTIC!!! Any way I might get those? :D ...seriously! I miss the old days!! :D

[TheUnbreakableBSB]

Great song