Billy Corgan had an eventful weekend. On Friday, he put on his spookiest evening gown and played "G.L.O.W." and "Tarantula" for Jimmy Kimmel. The next day, his Pumpkins headlined a Guitar Hero World Tour launch party in West Hollywood, where they debuted new tune "As Rome Burns" and covered Simon & Garfunkel ("Sounds Of Silence") and Pink Floyd ("Set The ...