This producer is retired. Any changes should be notified to ensure that edits meet this wiki's policies and guidelines. Discussions for the retired are here and see more subjects categorized here.
Ossan-P (おっさんP) was a producer who began contributions to the VOCALOID community almost immediately after Hatsune Miku's launch. His most notable song, Holy Star, has made appearances in Project Diva. He has been assumed to be retired since 2012.