Paul is dead

"Paul is dead" is an urban legend and conspiracy theory suggesting that Paul McCartney of the English rock band the Beatles died in 1966 and was secretly replaced by a look-alike.
In September 1969, American college students published articles claiming that clues to McCartney's supposed death could be found among the lyrics and artwork of the Beatles' recordings. Rumours declined after a contemporary interview with McCartney was published in "Life" magazine in November 1969.
Popular culture continues to make occasional reference to the legend, and McCartney poked fun at it with a 1993 live album titled "Paul Is Live", whose cover parodied "clues" allegedly on the cover of the Beatles' "Abbey Road" album.
The evidence.
The legend is based on a range of ideas. One theory says that facial recognition proves that a different person "became" Paul after 1966. The "Abbey Road" cover clues include: