The Simpsons much anticipated episode featuring New Zealand's fourth most popular guitar-based digi-bongo acapella-rap-funk-comedy folk duo Flight Of The Conchords has just screened in America. "Elementary School Musical" had The Simpsons writers channeling their scathing satirical genius toward musical tv shows - and appropriately had Bret and Jemaine take the piss out of their own musical-comedy schtick, as well as the cast of Glee on hand to get the message across. Lisa goes to Art Camp...