But last year, Chvrches made Love Is Dead, a significantly more commercial album that paired them with big-name pop producer Greg Kurstin. The Scottish synthpop trio made their name with two excellent albums of fizzy, emotionally forthright music. You are probably more familiar with Chvrches. And if you’re a struggling festival-indie band, that marshmallow face might look something like salvation. “Happier,” Marshmello’s collaboration with Bastille, recently peaked at #2 on the Billboard Hot 100.

Even in an era when electronic dance music is no longer the dominant commercial force that it once was, Marshmello remains overwhelmingly, bafflingly popular. In his generally-pretty-fun music videos, he’s a marshmallow-headed teenager - with marshmallow-headed parents, and marshmallow-headed sports heroes - trying to make his way in the world. He performs while wearing a giant and ridiculous mask that makes his head look like a smiling marshmallow. Marshmello is a 26-year-old dance producer from Philadelphia.

If you are relatively unfamiliar with the figure known as Marshmello, we’ve got some catching-up to do.