Prince William is 'ear' to throne at Cheltenham races
The Duke of Cambridge found his ear playfully pulled by a friend as he enjoyed the horse racing at Cheltenham.
The prank was obviously enjoyed by his wife, the Duchess of Cambridge, who can be spotted smiling behind the prince.
So far, mystery surrounds the identity of the tweaker of the regal lobe whose arm in this picture appears from behind a couple of other racegoers.
William and Catherine, who is five months pregnant, continued a long tradition of interest in the "Sport of Kings" among members of the Royal Family.
The duke and duchess witnessed the showpiece of the four-day jumps festival in Gloucestershire on Friday, the Cheltenham Gold Cup, won by 11-4 favourite Bobs Worth, ridden by Barry Geraghty and trained by Nicky Henderson. The Gold Cup was presented by the Princess Royal.
Catherine's sister, Pippa Middleton, was at the races on Thursday, and Princess Anne's daughter Zara Phillips and her husband, former England rugby player Mike Tindall, have also been in attendance.
Mr Tindall co-owned a horse - Monbeg Dude - in the feature race but it failed to complete the race.
For Ms Phillips, who won a silver medal as part of the Great Britain equestrian eventing team at London 2012, Cheltenham racecourse was the scene where she carried the Olympic flame on her horse Toytown.
BBC royal correspondent Peter Hunt commented on the photo of Prince William: "The ear of an heir."