Ian Halperin (born August 17, 1964)[1] is a Canadian investigative journalist, writer and documentary filmmaker.
His 2009 book, Unmasked: The Final Years of Michael Jackson was a #1 best-seller on the New York Times list on July 24, 2009.
[2] He is the author or coauthor of nine books including Celine Dion: Behind the Fairytale, Fire and Rain: The James Taylor Story and Hollywood Undercover.
[3][4] In late 2008 The Sun and In Touch Weekly cited Halperin as the source in articles stating that Michael Jackson had serious health issues.
"[14][15] Shortly afterward, Jackson announced a 50-date residency at the O2 Arena, holding a public press conference.