Paul McCartney made a guest appearance with Steven Van Zandt’s band in London last night (Nov. 4), as the pair aimed to complete what the Bruce Springsteen guitarist called “unfinished business.” 

Watch their London, U.K. performance of the Beatles classic “I Saw Her Standing There.”

It’s thought Van Zandt was referring to a Springsteen show in 2012, where McCartney’s guest appearance was cut short when Hard Rock Calling festival bosses cut the power to the stage.