LONDON (AP) – Hundreds of Beatles fans swarmed Abbey Road on Saturday, singing songs and snarling traffic to mark 40 years since John, Paul, George and Ringo strode across the leafy north London street and into the history books on iconic pop photos.

The famous photo graced the cover of the Fab Four's 'Abbey Road', the last album recorded together, and shows the bandmates walking purposefully across the zebra-striped asphalt.

It remains one of music's best-known album covers, endlessly imitated and parodied. Although the shoot itself only took a few minutes, so carefully studied was the cover for signs and symbolism that some die-hard fans came to the conclusion that Paul McCartney – who appears barefoot and out of step with the rest – had secretly died.

McCartney himself made fun of the bizarre conspiracy in the title of his 1993 concert album, 'Paul is Live'.

Conspiracies aside, the ease with which fans can imitate the scene has drawn throngs of tourists to the site every day, turning the street into "a shrine to the Beatles", said Richard Porter, who owns the nearby Beatles Coffee Shop and organised Saturday's event.

Crowds spilled into the street, cameramen jostled for angles, and exasperated drivers honked their horns.