Paul McCartney and Ronnie Wood jammed out during an Ambasador Theatre (London) gig staged by Macca's son James last week, according to a report from OK! magazine.
James was performing a preview show ahead of his upcoming tour, getting a little help from Wood when Sir Paul hopped onstage, taking a spot behind the piano. After the impromptu performance, Paul left the stage to his son.
The famous father and son are frequent musical collaborators. Earlier this year, Paul was to be found in the studio along with James, who's working on the follow-up to his 2011 debut The Complete EP Collection.
At the time, Paul hit Twitter to post a picture of the pair by a mixing desk with the caption, "Having fun in the studio with James on his new album."
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