Former Beatle John Lennon would have turned 73 on Oct. 9, 2013. Take a look at Lennon's life and career, from The Beatles and beyond.
Born on Oct. 9, 1940, Lennon had recently turned 40 when he was shot and killed by Mark David Chapman in New York City on Dec. 8, 1980.
The following five celebrity urban legends will likely live on long into the future, despite the fact that none of them is remotely true.
Whatever their reasons, more than a few stars have decided to walk away from their chosen fields only to get the itch and return -- some more than once. Take a look at some celebrities who have "unretired."