Steven Van Zandt brought his Disciples of Soul tour to the Roundhouse in London this past weekend, and the guitarist got some help from special guest Paul McCartney in resolving some “unfinished business” during the concert.

As UK’s Uncut reports, Van Zandt, who is on his first European tour in 25 years, welcomed McCartney for a run of The Beatles classic “I Saw Her Standing There,” with the two musicians sharing vocals.

Van Zandt referred to the collaboration as an attempt to “finish some unfinished business,” referring to the time McCartney joined Bruce Springsteen and the E Street Band on stage at London’s Hyde Park in 2012 for the same tune, which was cut short due to the venue’s curfew.

McCartney also did his part to rectify that bit of history earlier this year at New York’s Madison Square Garden, when the Beatle welcomed Springsteen and Van Zandt on stage for not one but two renditions of “I Saw Her Standing There.”

Watch the collaboration from London below.