A version of the group CORBiAN Visual Arts & Dance, responsible for the glow-in-the-dark delight Darwin the Dinosaur, in May performed on NBC's America's Got Talent, prompting patriotic plaudits from judge Howard Stern (he did not wax so poetically for local comic Chris Trew's air sex act). The group, which on the show is called Lightwire Theater, has since advanced to the top 48 and appears on the live show tonight at 7 p.m. local time. Viewers can vote tonight via phone (the group is assigned a unique phone number that appears during the show) or on the show's Facebook page after the episode airs. The voting results show airs tomorrow at 8 p.m. The winner receives a $1 million prize and the possibility of a Las Vegas show.