21 SONGS
15
20 songs in 2010
Around 10 songs
4-8
No. BTR does not sing with JB.
justin bieber doesn't sing many songs any more all he does is be famous and get awards all day.
well he when to a recording studio
drama and love
if i was your boyfriend
Justin Bieber sings about his old girlfriend Caitlyn and Rihanna of course!
of coarse he does
never say never