The Rolling Stones to Appear on Downton Abbey?

Downton Abbey could be getting a little more rock 'n' roll.
The Rolling Stones, according to a report in the UK's Guardian, could appear on an episode of Downton Abbey if one star gets his wish, an unnamed source tells the newspaper.
Breaking Bad and other returning summer shows
Downton's Hugh Bonneville, aka the Earl of Grantham, is friends with the Stones' Ronnie Wood through charity work and would love to have the band members on for walk-on roles. "Obviously they wouldn't play themselves, but they could be a rag-tag bunch of travelling entertainers or even a circus act," the source says. "It would be such a coup, and fun for the Stones. They really are huge fans of the show."
And although there's no word (yet) if the Stones are interested in going period, they're huge fans of the show. Laura Carmichael, who plays the lovelorn Lady Edith, says: "Apparently they were stopping rehearsals on Sunday nights in time to get back to watch it ... When Sybil passed away, Mick [Jagger] said to Ronnie [Wood], 'Sad to hear about the girl.' Ronnie replied, 'I haven't seen it yet — I recorded it.'"
Would you like to see the Rolling Stones visit the Crawleys & Co.? What roles should they play?