The Free Design is in this?

I haven't seen this film, but I'm a big fan of The Free Design. They are listed on IMDb as "music performers" in this movie.

Do they appear in the movie? Or did they do the soundtrack? I suppose Chris Dedrick is responsible for this, as he is credited for "Original Music" here and has composed music for many other films.

Thanks in advance, now I really wanna see this one.