can anyone identify this song?

[sylvyfish]

ive been trying to find this track forever, it isnt on any PoT OST that i have and i cant figure out why. they play it so often.

starting at 3:19 in this video:
www.youtube.com/watch?v=oCY4KW8xkjY

if anyone can tell me what OST its on (if any, although i cant believe it isnt on one) and the name of the track, id greatly appreciate it.

[hanhan2413]

It maybe one og the tracks they dont Release, Like in Naruto they didnt Include Tenten's theme althought a lot of people Herd of it..