It stands to reason if you’re going to make a movie musical set in current-day Los Angeles, you’re going to have a massive dance number on a freeway, right? And if there’s one prolific musical sequence that’s apt to stay with those moviegoers coming out of the La La Land’s Toronto Film Festival premiere tonight, it’s that traffic-jam ditty.

Today, Damien Chazelle, who wrote La La Land before his Best Picture Oscar nominee Whiplash, revealed the challenges in directing that car-stomping scene, which was shot on a ramp connecting the 105 and the 110 with 100-plus dancers. If we could only be so gleeful on our morning drive to work.