Rod Stewart picked up a side hustle of sorts over the weekend.

The Glasgow pub The Dirty Duchess shared the photo below along with the caption, “Great to have spare bartender Rod ‘the mod’ Stewart tonight!”

Great to have spare bartender Rod ‘the mod’ Stewart tonight! #discoshifter #robstewart #mondown

Posted by The Dirty Duchess on Sunday, May 1, 2022

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According to BBC News, Stewart was in town supporting his beloved Celtic F.C. against Rangers F.C. during the semi-finals of the Scottish Cup. The match ended in a 1-1 draw.

Following the game, Stewart popped into the local pub when BBC noted he “surprised regulars…after getting behind the bar to give the bar staff a hand.”

Rod Stewart: Classic Images