Me and Modern Glamour met online through our mutual love of Car Seat Headrest. After we both did covers on the /r/CarSeatHR tribute album, we started listening to each others' music and decided to collab.
So here's what we came up with - we would each write one song, and then without recording it, we would pass the lyrics and chords of our song onto the other person. Then, it would go, we would cover each others' songs without ever hearing the original(!). This is what came of that collaboration - enjoy.