Paul McCartney just played a secret gig at the Cavern Club, the old Liverpool club where the Beatles got their start during the beginning of “Beatlemania” Free tickets were announced at 2 pm (GMT) on Thursday, just hours before the gig. It was an intimate show at the venue which held about 200 lucky fans. This was the 2nd time Paul had returned to the club since the 60’s and he played a 27-song setlist for fans.