Britney Spears bspearspart212220x.jpg Despite recent reports that Britney Spears was signing a $14 million deal for her autobiography, OK! Magazine says it's highly unlikely that a book penned by the pop princess would bring in that much cash.

A U.S. publishing insider tells the mag, "That seems ridiculously high for a book deal. Even though she's a huge star, that doesn't mean anyone wants to read an autobiography by her. To make back that much of an advance, the publisher would have to sell Harry Potter-size numbers."

$14 million does seem like a lot of money, but we'd definitely be interested in reading Brit's account of her own life!