The ladies stopped Robin in his tracks and asked for a photo, promptly posing with the American-Canadian musician.
Robin, 36, was only too happy to oblige, smiling happy and sharing jokes as the girls snapped away.
What a gent!
The singer had been for dinner after filming for Alan Carr's C4 show Chatty Man.
But his stay hasn't all been plain-sailing. His single 'Blurred Lines' has been banned on campus at some universities around the UK, with some student unions fearing that the lyrics could promote sex without consent.
Robin, who is married to childhood sweetheart Paula Patton, disagrees.
He told the BBC: "I think the kids get it. I just have to deal with that. I wrote it about my wife. She's my good girl. And I know she wants it because we've been together 20 years."
Robin won't be in town for long, as he's off to perform at the MTV EMAs in Amsterdam this Sunday. Wonder if Miley Cyrus is invited?
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