Klaus hears the words, but really hopes that's a good sign and not a bad sign. Either way, they are not gonna stop performing until they get to the end of the song because...that sounds like a boring way to be.

Once the music is over, he looks mildly bashful. "One day I'm gonna make you come up here with me. Once we like...get you to learn more songs and you can do it. Then it'll be great and we can do cool outfits and make everyone super jealous. Basically."