Grimes first linked up with Fun. co-leader Jack Antonoff on “Take It Away,” a 2014 song from Antonoff’s solo side project Bleachers. And now they’ve teamed up once again, this time for an absolutely dazzling pop song called “Entropy.” It’s a power-pop tune, more or less, with the same sort of sparkling production that Antonoff brought to Taylor Swift’s “Out Of The Woods.” But it’s very much a Grimes song, too, with that otherworldly echoing reverb all over Claire Boucher’s voice. The song will appear on tonight’s episode of HBO’s Girls. They’ve shared it a bit early, which is nice, since it’s also a pretty perfect Sunday-morning soundtrack. You can hear it below.

“Go” was one idea of what a Grimes pop song might sound like. This is another. It might be better.