Everyone loves dressing up as their favourite book characters for World Book Day - even celebrities! Who would Ed Sheeran be from The Jungle Book? Imagine Dua Lipa as Tracy Beaker, Rebel Wilson as The Worst Witch or Stormzy as the BFG! How about Ali A in Wonderland and Ant and Dec on the seven seas? Every book needs a bad guy though - look out, Harry Potter, Piers Morgan's coming for you.