David Cameron voiced chapter 30, titled The Pipe, of the classic American novel as part of The Moby-Dick Big Read.
He is amongst a number of stars, including Stephen Fry, Tilda Swinton, Benedict Cumberbatch and Sir David Attenborough, who have jumped on board the ambitious project to broadcast all 135 chapters of Herman Melville's novel over 135 days.
Since Swinton took on the novel's opening, Call Me Ishmael, on September 16, the website has been visited by almost half a million people, placing it in the iTunes podcast charts on both sides of the Atlantic.
The Moby-Dick Big Read has been two years in the making and originated from the mutual obsession with the book by award-winning author Philip Hoare and artist Angela Cockayne.
The daily readings, broadcast online, are accompanied by images inspired by the book from contemporary artists including Anish Kapoor and Antony Gormley.
The project was launched at the Plymouth International Book Festival in September.