Which is perfectly reasonable to me besides kids and young at heart like me enjoy that type of music these days.

Well the song was made for soundtrack, but it won’t be in the film. As for Meghan Trainor as a Peanuts character they did that to advertise the fact she is making a song for the soundtrack. They did the same to Al Roker http://www.today.com/popculture/al-roker-gets-peanuts-treatment-cartoon- makeover-i-love-my-t35051 and John Green http://www.today.com/popculture/al-roker-gets-peanuts-treatment-cartoon-makeover-i-love-my-t35051 and they have nothing to do with the film. There is even a website where you can make yourself look like a Peanuts character http://www.peanutizeme.com/ .

I wish that were the case. But it seems like this song was made for the film itself. Backing that up is a CGI render of Meghan Trainor. http://www.people.com/article/meghan-trainor-peanuts-movie-song-character-photo

He said no modern songs will be in the film itself. As for anything outside the film itself it’s FOX trying to market it to a younger generation who may not be familiar with Peanuts.