On the most recent episode of the BBC's Later With Jools Holland, British minimal-pop heroes the xx came through to play their delicate, insinuating single "Angels," bringing their gigantic plexiglass X with them. It's fun to watch the band, hushed, doing all the track's interlocking parts in real time. Watch it below. [videoembed size="full_width" alignment="center"][/videoembed] The xx's Coexist is out ...