Pregnant Kate and William Rock the Dance Floor at Friends’ Wedding

Kate Middleton is seven months pregnant but that didn’t stop her and her baby bump from busting a move with her husband, Prince William, when they attended a friends’ wedding in the UK on May 11.

Wearing a black-and-white polka-dot Topshop dress (that cost just $58), Kate showed no signs of the morning sickness that plagued her during the early stages of her pregnancy as she and William showed off their skills at the wedding reception of their friends Willem Van Cutsem and Rosie Ruck Keene.

Tom Vincent, who played the drums for the wedding band, told British newspaper The Telegraph that the royal pair were full of energy. “Fantastic wedding gig with the Co Stars last night,” he said. “Prince William and Kate Middleton were rocking the dance floor.”

It was the second time Kate’s been spotted in the polka-dot dress – it sold out on the Top Shop website within one hour after she wore it on a visit to the Harry Potter set on April 26. The Duchess (who’s due to give birth in July) is a long-time fan of Topshop and was spotted browsing the racks at one of the chain’s London stores in March. Since then she’s also been seen in a $69 black shift dress with a white collar and reportedly also bought a short floral-print maternity dress by Lovestruck.