Mumford & Sons singer Marcus Mumford has been in the studio with Justin Timberlake for the soundtrack to a new Coen Brothers movie.
The film "Inside Llewyn Davis" features Marcus' real wife Carey Mulligan alongside Oscar Isaac who plays a musician trying to make a name for himself in 1960s New York. Justin Timberake will also feature onscreen, according to NME.
Timberlake revealed their unusual collaboration during a recent interview:
"Marcus and myself, we all kind of worked on the music together and I don't know any other world where we would have the opportunity to collaborate like that but it was so much fun.
"So not only will that be a great movie, but the music to it will be fantastic."
The film does not have an official release date, but is expected to arrive in theaters this year.
Who would you dream film score collaborators be? Let us know in the comments.