Prince William will be seen making Royal history with a surprise appearance on The Graham Norton Show, it has been revealed. His Royal Highness The Prince of Wales is on the iconic sofa this week to talk about the Earthshot Prize, which he founded - as well as The Celebrity Traitors.Host Graham will be seen talking to Cate Blanchett, Hannah Waddingham and Robert Irwin about Earthshot, before stunning the audience by welcoming the Prince onto the stage.