During ITV's two-and-a-half-hour live show on 15 May in the presence of Her Majesty, it will air a royal-themed ad break to celebrate the Queen's birthday. Eleven brands, including Ribena, Walkers crisps and Cadbury Milk Tray, are taking part in a commercial that will last almost three minutes. It will feature celebrities singing during a street party on the set of Coronation Street.