It will be built, and they will come. The Yankees...

A fan carries a copy of the album 'Abbey Road' as he crosses the Abbey Road.

Thousands of fans gather to walk across the Abbey Road zebra crossing, on the 50th anniversary of British pop musicians The Beatles doing it for the cover of their album 'Abbey Road' in St Johns Wood in London, Thursday, Aug. 8, 2019.

It was Beatlemania all over again this morning on the streets of London.

To celebrate the 50th anniversary of The Beatles’ iconic “Abbey Road” album photo shoot, fans took turns walking in unison across the intersection where John, Paul, George and Ringo famously strutted.

Many dressed up to look like the Fab Four as they strolled through London’s “zebra” intersection.

Thousands were in attendance, between the grown-up teeny boppers and casual spectators, filling the area in the St. John’s Wood neighborhood. Some anti-Brexit demonstrators even joined in the rock ‘n’ roll revelry.

All walked in the footsteps of the iconic musicians who inspired them.

At 11:35 a.m. on Aug. 8, 1969, Iain MacMillan photographed John, Paul, George and Ringo striding across the black-and-white “zebra” crossing while a police officer stopped traffic, the Associated Press reports.

A trivia note: “Abbey Road” was almost titled “Everest,” because the band’s engineer, Geoff Emerick, smoked that brand of cigarettes, according to an MacDonald’s book “Revolution in the Head: The Beatles’ Records and the Sixties.”