Rumour has it that Hollywood hottie Megan Fox could be set to don a Pirates of the Caribbean costume soon. According to various reports, producers of the popular franchise are keen to sign up the Transformers actress to play a part in Pirates of the Caribbean 4. Nothing has yet been confirmed by the films' officials or the lady herself, but fans are already getting excited about the prospect of a new character to liven up proceedings. It has been suggested that rather than being put in a pirate outfit, Megan would don a mermaid costume and use her feminine wiles to charm Jack Sparrow - but she may have dark motives in mind. We've already seen a kraken and an army of dead pirates, so a saucy mermaid is the perfect addition to the Pirates world. It could also be the perfect sexy fancy dress outfit for your summer parties!