Amazingly Random -- Mexican Float Plays Live Music For Random Neighborhood (VIDEO)

Was it a runaway float? Or maybe they were just prepping for The Rose Parade. Or maybe someone is just great at pimping their ride.

We were just about as confused as the guy who uploaded the video on Monday ... it ended up being for Mexican Independence Day -- September 16th -- but why stop in this random neighborhood two days before the holiday?

Whatever the reason was, it's random and it's hilarious.