Taking advantage of the downtime between Chella Round #1 and Round #2, Alt-J swung through the set of Conan O'Brien to join Team CoCo for a live rendition of "Breezeblocks". Alt-J's delivered some fantastic tunes lately, thought I've heard mixed opinions about their live show ("boring", "lazy", etc). Personally, I haven't caught them live and can't say. What do you think? Maybe it's just the nature of their music too, xx style... Here's Alt-J on Conan.