VIDEO : Prince William Has Kate Middleton In Hysterics As He Gallops During Royal Variety Show

Prince William attended the Royal Variety Show and joined in with host Miranda Hart's jokes.

William shouted out Hart's catch phrases prompting laughter and cheers from the audience.

Hart encouraged the cast of Annie to request Prince William show off his galloping.

The Prince gladly obliged, sending the audience and Kate Middleton into an uproar.