^ ah~ the single has title track already..
it's called "FATE" and it has PV teaser on his official site.
and the other tracks are "Cry" and "Nothing to lose" (for limited edition bonus track).
the collaboration is probably either of those 2 songs.
I think it's gonna be "Nothing to lose" but yea still have to wait and see.
but as i read the tweets translation of Naoya's pic posted by ayu..
it said "
ayu_19980408: As usual, little bro’s voice was a miracle ☆ Moving on to the next little bro!!!"
Naoya was also at the recording studio.. hmmm~~
one more pic of ayu and JUNO..
http://twitpic.com/5koe55
ayu is so funny lolss~~