Simon Cowell, 52, is not gay, and he wants everyone to know it. A biography of Cowell entitled Sweet Revenge: The Intimate Life of Simon Cowell, penned by celeb biographer Tom Bower, hit bookstores this week and revealed some surprising details about the intimate life of the American Idol and X Factor personality Cowell, not the least of which is that he's not gay.

"If I was gay," Cowell told Bower, "why wouldn't I admit it? It wouldn't harm me, and my mother wouldn't freak out," Cowell said, according to The Huffington Post. Another revelation made by Bower's book concerns the alleged relationship between Cowell and Aussie pop star Dannii Minogue, the younger sister of Kylie Minogue. Minogue and Cowell hosted the British X Factor together between the years of 2007 and 2010.

The book also goes into Cowell's public romance and failed engagement to makeup artist Mezhgan Hussainy, which he has formerly called "a big mistake."

Although it is rumored that Cowell cooperated with Bower in the writing of Sweet Revenge, according to the UK's Daily Mail, he also found it necessary to stress that he was not the writer himself. "This book is not written by me," Cowell tweeted on Tuesday. "It is unauthorised. The writer is Tom Bower."