Last night, Alt-J (∆) stopped by Conan O’Brien’s late night show to perform “Breezeblocks” off their debut album, An Awesome Wave. The British quartet is coming off an impressive set at last weekend’s Coachella and will play the Mojave Tent again tonight as part of Weekend Two. Check out “Breezeblocks” from last night and tune into the Coachella (COUCHella) Webcast today around 5:20PM to watch them live from Indio.

*The name “Alt-J” is an allusion to the Greek uppercase letter delta (∆) which can be typed on Apple Mac OS X by the key sequence alt (option) + J. (wiki)