It Was You by "Kishidan", is the eleventh ending song in the Japanese version of Part II of the Naruto Shippūden series.
Lyrics
Omae gatonari ni iru
Omae ga waratte iru
Omaega ureshi sou de
Ore mo waratta
Omae wa mujaki datta
Omae wa yasashikatta
Omae wa tokidoki naki
Ore wa komatta
Dare yori tsuyosa o motometa ano koro
Ore no tatta hitotsu no yowasaa ga
Omae datta
Omae datta
Omae datta nda
Aitai
Yoru o koete
Toki o koete
Ima aitai