Singers Romy Madley-Croft and Oliver Sim pass it back and forth on the xx's newest single, the taut, sexy "Sunset." Though Madley-Croft has insisted that the new record isn't a "world away" from their debut, "Sunset" allows Jamie xx's percussive textures a little further into the mix than usual. Listen below. [The track was unofficial, and therefore removed.] Coexist is ...