The Vancouver duo Lightning Dust is a side project of the great Black Mountain, and their new single “Diamond” is the romantic soft-focus new-wave jam that nobody ever expected them to write. With the song’s video, director Helen Reed tells a nice story about using art to overcome mundanity. It shows us three women who bust into a seemingly spur-of-the-moment synchronized swimming routine in a dingy public pool. Watch it below.

Lightning Dust’s new album Fantasy is out 6/25 on Jagjaguwar.