The co-authors of bestseller The Nanny Diaries have revealed Usher's failed romance with TLC star Rozonda 'Chilli' Thomas was the inspiration for their new book. Nicola Kraus and Emma McLaughlin admit they wrote Dedication after getting caught up in the controversy surrounding Usher's famous split with his ex.

Although neither party has spoken extensively about the break-up, Usher has revealed his infidelity and her wish to marry ended the two-year romance in 2004.

Reports have suggested Usher, who recently wed stylist Tameka Foster, used the relationship and it's fall-out as inspiration for his blockbuster 2004 album Confessions.

Kraus and McLaughlin's new book follows the fortunes of a woman who confronts her high school sweetheart after he used their relationship as inspiration for a pop music career.

McLaughlin tells internet gossip columnist Marc Malkin, "That album was ubiquitous. You could not go anywhere without it pumping out of every car, every restaurant. We couldn't stop thinking about it. We were like, 'How is Chilli not killing herself right now?'"

-Scarlett Johansson Pictures

(This news article provided by World Entertainment News Network)