I remixed an old Bruno Mars song and added a video to it with 50 or so pictures of my dear wife. Some of them are already here in ipernity.

I always thought the original arrangement of the song didn't do justice to the melody, so when I bumped into an accapella version of it in YouTube one day, I immediately downloaded it into my DAW. The same I–vi–IV–V chord progression applied to both the verse and the chorus, and the vocals appeared to be recorded to the click track, so it was easy to pile backing tracks behind it. I just reharmonized the chords slightly – and to be honest, changed the vocal melody at one point.