It's the Most Wonderful Time of the Year · Tesla Light Show
by Andy Williams
Big-band swells, staged big: the verses swing warm across the signals and fogs, and every "it’s the most wonderful time of the year" opens the whole car up with the brass. Andy Williams cut it in 1963 and it has been ambushing people in supermarkets ever since. The show is rear-led, an unusual choice that puts the brass hits behind you, and a quarter of its values fade rather than switch, so the swells genuinely swell. Two and a half minutes, building to its widest at the end. The kind of show that makes passing cars slow down.
How this one is choreographed
The lights re-fire about 0.7 times a second, a middle pace that tracks the beat without crowding it. It builds. The car runs about 31% of its lights through the opening third and finishes near 39%, so the biggest picture is the one you end on. If you are filming, the fullest ten seconds start at 1:23, when about 43% of the car is lit at once. Most of the work falls on the rear turn signals, re-firing about 0.9 times a second, with the brake light answering back at 0.9. About 62% of the re-firing happens at the rear, so the better view is from behind the car. The quietest part of the car is the inner main beams, at about 0.3 re-fires a second. It runs 2:34 and averages 74 of 255 across the light channels, a mid-brightness show, with real headroom kept in reserve for the peaks. About 25% of the light values are partial, toward the top of the range for this catalog, so the show leans on swells and dimming as much as on hits. It never goes completely dark for long: the longest gap is 0.9 of a second, just before the close.
Measured from the exported light sequence for this show, not estimated from the song.
Get it for your Tesla
This show downloads for every Tesla: Model 3, Model Y, Model S, Model X, and Cybertruck. Preview it on your model with the View-on picker above, add it to your library, and it re-tailors to your car's lights automatically.
How to play it on your car
- Open the show above and add it to your library (remix it in the builder first if you want).
- Add your own copy of the song: an MP3/WAV you own. We distribute only the light pattern, never audio.
- Export the
.fseqbuilt for your model, then place your song next to it (or let the one-click USB writer do both). - Put both files in a
LightShowfolder on a USB drive. Or skip the manual steps: in Chrome/Edge, click 🔌 Write it to my USB drive for me right after exporting and we do it all, verified byte-for-byte. Then plug in and start it from Toybox → Light Show. Full walkthrough in the setup guide.
Car says Light Show instead of Custom Light Show, or the drive is not detected at all? That is the USB format, the folder name, or filenames that do not match. If it plays but drifts out of time, that is the audio sample rate. Fix both here.
Setting up for Christmas? The Christmas guide walks through the whole evening, from picking the show to parking the car so the neighbours can actually see it. Read the Christmas guide.
