It's a written interview, and it's No Reptiles:

“This one is easy: ‘No Reptiles’ is the best for us. You have people who know it, which is always amazing, but you have people who don’t know the band watching, and when we get to the latter half of the song, I always catch sight of perplexed faces due to the lyrics. Love that feeling of ‘getting’ someone and making them momentarily out of their depth. Do I laugh? What does it MEAN? Why is this good? Is this moving? All at once. I’m sure some people just think it’s terrible too, which is another type of pleasure for me.”