usher: it's your chance take her hand to the floor
(fellas just the moment you've been waiting for)
girl if you see something you like then let 'em know
(ladies i know your ready)
cuz you only got one chance
(yeah yeah)
for your first dance
(you never forget bout your first dance)
so take advantage of the slow jam
(tell 'em j.b.)yeah, man

justin: when i close my eyes,
i see me and you at the prom
we've both been waiting so long
for this day to come
now that its here
let's make it special

(i can't deny)
there's so many thoughts in my mind
the d.j.'s playing my favorite song
ain't no chaperones
this could be the night of your dreams

chorus:
only if you give, give the first dance to me
girl i promise i'll be gentle
i know we gotta do it slowly
if you give, give the first dance to me
i'm gonna' cherish every moment
'cuz it only happens once, once in a lifetime

i couldn't ask for more
we're rocking back and forth
under the disco ball
we're the only ones on the floor

(i can't deny)
there's so many thought in my mind
the d.j.'s playing my favorite song (favorite song)

http://www.rocktainment.com/detail/first-dance-lyrics-justin-bieber.html

now we're all alone (all alone)
here's the opportunity

only if you give, give the first dance to me
girl i promise i'll be gentle
i know we gotta do it slowly
if you give, give the first dance to me
i'm gonna' cherish every moment
cuz it only happens once once in a lifetime

everybody says that we look cute together
let's make this a night the two of us remember
no teachers around to see us dancing close
i'm telling you our parents will never know
before the lights go up
and the music turns off
now's the perfect time for me to taste your lip gloss
your glass slippers in my hand right here
we'll make it before the clock strikes nine

if you just give give the first dance to me
girl i promise i'll be gentle
(i know)but we gotta do it slowly
if you give, give the first dance to me
(give the first dance baby)
i'm gonna' cherish every moment
cuz it only happens once, once in a lifetime

usher: it's your chance take her hand to the floor (to the floor)
girl, if you see something you like then let 'em know
cuz you only got one chance, for your first dance
so take advantage of this slow down
yeah man.

if you give, give the first dance to me
i'm gonna' cherish every moment
cuz it only happens once, once in a lifetime