I think it is. Although it will also be included on her companion album, I don't have the impression that she actually recorded it twice. Personally, I'm not going to listen to the soundtrack ahead of time, other than the brief sections that I've already heard in trailers and the like. I feel like I already know so much about what this movie is that if I listen to the songs ahead of time, then there won't really be anything left that's new. Hearing the new interpretations of the songs for the first time in the context of the movie itself is something that I have to look forward to with this one; if I just listen to the soundtrack now, then I'm minimizing that impact. So I'll wait.