Just when I was getting worried for a while that the super-aggro, mass-culture-canned version of dubstep (see: Skrillex, Excision) was starting to completely fill out the mainstream’s understanding of electronic music, legendary English innovators Portishead calmed me down. The trip-hop act showed up on “Late Night with Jimmy Fallon” to play a brand new song and a classic, for the first time on American TV in 13 years. 

Watch (or rather, experience) “Chase the Tear,” which the band is currently promoting as a 12” release, and “Mysterons,” a haunting song that will probably outlive us all: