Hundreds of Beatles fans came together outside London's Abbey Road Studios on Thursday to celebrate the 50th anniversary of the band making one of the most iconic album covers of all time.

Beatles lookalike band 'Fab Gear' and fans of The Beatles pose at the famous Abbey Road zebra crossing in London, England on August 8, 2019, the 50th anniversary of the day that the iconic Beatles album cover photograph was taken. (Photo: AFP)

Fans mobbed the pedestrian crossing exactly five decades on from the moment when Britain's legendary Fab Four walked across for the photo that was used on the sleeve of their final studio album, "Abbey Road".

The shot of John Lennon leading band mates Ringo Starr, Paul McCartney and George Harrison over the zebra crossing is instantly recognised all over the world.

Beatles tribute band Fab Gear pulled up in a psychedelic Rolls-Royce and recreated the moment, as fans halted the traffic.

Mary Anne Laffin, 66, flew in from New York to be at what she called a "holy shrine".

As a youngster, she ran on the pitch when The Beatles played at New York's Shea Stadium in 1966.

"I was 12 years old, saved up $5.50 to get a ticket and it was like being in heaven for 38 minutes," the midwife said.

"I was overcome, climbed over all the seats and ran, trying to get to the stage. I got carted off by the police."

She added: "It's exciting to see all these people that also love them, and how much they've meant to the world."