In his own words:
My friend showed me the Sketchbook Pro App while traveling to Oregon for a snowboarding trip. We messed around with the time-lapse feature on our down time while traveling.
So, when Lucius asked me if I could somehow make a lyric video using the 'leroys'. I immediately said yes with the Sketchbook Pro App in mind. They had a two day deadline and I wasn't totally sure if it'd work.
I listened to the song a few times, logged every few seconds on a piece of paper—jotting down what was happening whether it be the actually lyrics, which thankfully are very minimal, or even notes of the intensity level of each chorus, verse, breakdown etc. This way, as I watched the 'actual time log' during a time-lapse I just followed my map of what to do.
The first version was sent over and they had a list of feedback for me. They accepted the second version that I made and it was published the next day on YouTube. Some of the timing was slightly off, so I augmented the speed in certain areas using iMovie.