Jo Nesbo was born 29 March 1960 is a Norwegian author and musician. As of March 2014 more than 3 million copies of his novels have been sold in Norway, and his work has been translated into over 40 languages, selling 23 million copies. Nesbo is primarily known for his crime novels about Inspector Harry Hole, but he is also the main vocalist and songwriter for the Norwegian rock band Di Derre. In 2007 Nesbø also released his first children's book, Doktor Proktors Prompepulver (English translation: Doctor Proctor's Fart Powder). The 2011 film Headhunters is based on Nesbø's novel Hodejegerne (The Headhunters).