The History of OOS

==Background==
The History of OOS is an original album by out of service. It contains 14 tracks, most of them being rearrangements of older songs by the artist. It features IA, GUMI and Hatsune Miku, as well as the CeVIO ONE. CYBER DIVA also sings in the third track.
==Preceding albums==
Osaka underground album.png|大阪アンダーグラウンド (Osaka Underground)
==Track listing==
==External links==
===Official===
===Unofficial===
Category:Albums
Category:Japanese albums
Category:Albums featuring Hatsune Miku
Category:Albums featuring IA
Category:Albums featuring GUMI
Category:Albums featuring CYBER DIVA