U.K. art-rockers Alt-J look to be primed for world domination with their upcoming second album, 'This is All Yours,' so where better to start than with a show produced by Worldwide Pants?

The band made an appearance last night (Sept. 4) on 'The Late Show with David Letterman' and performed their latest single, 'Left Hand Free' -- potentially the most straight-ahead rocker on the new album.

A few days earlier, Alt-J debuted a handful of new songs during their first show since 2013 at New York City's cozy (Le) Poisson Rouge. They also just released two NSFW videos for 'Every Other Freckle,' which you can watch below.