London: One Direction star Niall Horan has made an appearance in J.K. Rowling's new book, "Career of Evil", which she's published under her pen name Robert Galbraith.


Niall Horan (Pic/Santa Banta) and J.K. Rowling (Pic/AFP)

It's the third book which revolves around private investigator Cormoran Strike, reports mirror.co.uk.