A celebrity will introduce Michael Jackson's autobiography

Michael Jackson's reissued memoir will include an introduction by a mystery celebrity.

The celebrity was described by publisher Harmony Books as "a well-known figure in the entertainment industry who was close to Michael".

Harmony, an imprint of Random House Inc, will publish the new edition of Moonwalk in October with an announced first printing of 100,000.

The original text, released in 1988 by Doubleday, sold about 500,000 copies.

The memoir was acquired in the mid-1980s by then Doubleday executive Jacqueline Kennedy Onassis and has been out of print for more than a decade.

Proceeds will go to the Michael Jackson Family Trust, and to various charities supported by the singer, who died last month.