After watching the Diana concert from the Royal Box, Kate danced the night away with William at the after-party. Kate was spotted cosying up with William over a cocktail at the Diana concert after-party and later hit the dance floor. The couple - who split up in April after four years together and sat three rows apart throughout the Wembley concert - made the most of each other's company away from prying eyes at the after party. A friend said that they went wild when the Bodyrockers' hit 'I Like The Way You Move' came on. It used to be their song. Kate was dancing so sexily in front of Wills that chemistry was just oozing off them. Before stunning pals with their sexy moves the pair had shared an intimate moment at a candlelit table where they held hands whilst Prince William whispered to his former girlfriend. It follows the news that the William and Kate spent the night together at Clarence House on the eve of the Diana concert. On the eve of the show, Kate left her flat in Chelsea at 9pm and arrived at Clarence House around midnight. Her Audi car, which she had left at a Mayfair hotel car park, was collected by an aide and driven into Clarence House, waved through by police on guard at 1.45am. Kate did not return to her London home until 4am.