Singer Jon Bon Jovi has formed a special supergroup to celebrate the Labor Day holiday, comprising Billy Joel on piano, Jimmy Buffett on guitar and Sir Paul McCartney and Pink Floyd's Roger Waters on vocals. The impromptu performance took place a party Bon Jovi threw on Sunday night (2Sep07) at his Long Island, New York home. The rock legends performed Bon Jovi and Beatles tunes, along with many of Joel's own songs.