LONDON - Organizers of the London Live 8 concert said Sunday that the original members of the British rock band Pink Floyd would perform at the July event for the first time in more than two decades. Guitarist David Gilmour, drummer Nick Mason, bass player Roger Waters and keyboard player Richard Wright have not performed on stage together since 1981. The group, which achieved major success with their 1973 album "Dark Side Of The Moon," will join musical acts including Elton John, Madonna, Paul McCartney and Coldplay at the anti-poverty concert in Hyde Park on July 2. "Like most...