Justin Bieber Feat Boyz ii Men Fa la la 
B5 D5 A5 E5
Done by ear :) 
& played differently in some parts of the song enjoy <3 
Listen to the song to hear the different parts & these chords aren't 100% accurate
First verse:
B5                            D5
Is it time, I hear you can give it,

Give it, give it, give it all
A5                                       E5
One through the note your list you can get it,

Get it, get it, get it now
B5
Make your wish tonight
D5
When you open your eyes
A5
When the lights go bright girl
E5
I'll be right there

:)