The event that music fans have been waiting for 30 years to happen may finally take place: The Beatles will reunite. Reps for the surviving members of possibly the greatest rock band in history say that Paul McCartney, George Harrison and Ringo Starr will come together next month to sing their hit “Yellow Submarine” aboard — what else? — a yellow submarine as it cruises the Mersey River in the lads’ hometown of Liverpool, England, the New York Post reports. The event, which is expected to be broadcast on TV, will celebrate the re-release of a restored version of their 1968 animated feature film “Yellow Submarine.” Among the songs in the very psychedelic adventure is “When I’m 64.” Come to think of it, that’s no longer such a remote possibility.