Board Thread:Questions and Answers/@comment-31.151.107.102-20141123141843

I am an amateur animator on YouTube and am planning on starting a collaborative project with other animators on YouTube with a vocaloid cover from a japanese utaite (one of KK and one Nico Nico Chorus to be exact). I think that it's ok to use the original vocaloid version of the songs as long as you give credit, but does the same go for utaite (both japanese and english)? Are you allowed to use their covers for non-commercial purposes or would it be stealing if I used their work? 