LONDON — Beatles legend Sir Paul McCartney plays such big gigs that even if you get a ticket you're likely going to be watching him through binoculars.

So it was unsurprising that the 76-year-old sparked a frenzy Thursday by announcing that a very, very select group of fans would be treated to a rare, symbolic and altogether more intimate experience.

McCartney announced on Twitter that he would play a surprise show hours at The Cavern Club, a cramped cellar venue in Liverpool where The Fab Four made their name more than 50 years ago.

Rather than the stadiums and arenas to which McCartney is accustomed — around 184,000 people watched him perform in Rio de Janeiro in 1990 — the club holds just 350 people.

Tickets were handed out "on a first come, first served basis" from 10 a.m. local time (5 a.m. ET) and the concert was due to start at 2 p.m. (9 a.m. ET).

"Space is EXTREMELY limited!" his account tweeted.

The Beatles first played at the Cavern while they were still making their name in 1961.

The original club closed in 1973 and was eventually knocked down. The bricks were saved and used to build the venue that now stands in its place.

Earlier this week, McCartney was filmed visiting another historic Beatles site, walking across the pedestrian crossing the group made famous on their “Abbey Road” album cover.

Last month, he joined James Corden for a spot of “Carpool Karaoke” on The Late Late Show on CBS.

The pair sang a selection of hits including “Let It Be” and, of course, “Baby You Can Drive My Car.”