The Harry Potter author is to write an episode Doctor Who, the BBC has confirmed.
Rowling, who has recently announced an adult novel, will be working closely with show runner Steven Moffat as he develops the upcoming seventh series.
Speaking to BBC News, he said: “We are excited to be working with such a legendary talent. Rowling’s episode will take the show in a new direction, and we’re all very excited to see how it’s received.”
It’s tomorrow in England.