The seminal spoof rock band Spinal Tap is due to make a reunion appearance at the Tribeca Film Festival in New York tonight (Wednesday) with a new 15-minute film describing their lives since the original This Is Spinal Tap mockumentary was released in 1984. The Associated Press reported on Tuesday that the original band members, guitarist Nigel Tufnel (played by Christopher Guest), singer David St. Hubbins (Michael McKean) and bassist Derek Smalls (Harry Shearer), are also due to perform at Wembley Stadium in England as part of the Live Earth concerts on July 7. In an interview, director Marty DeBergi (Rob Reiner) said, "They're not that environmentally conscious, but they've heard of global warming. ... Nigel thought it was just because he was wearing too much clothing that if he just took his jacket off it would be cooler."