Sean 'Diddy' Combs, Freddie Mercury and Keith Richards are among a long list of stars whose bizarre behavior features in upcoming tell-all book "Rock Star Babylon."

The book, slated for release in July, recounts some of the stars' most embarrassing moments - compiled by author Jon Holmes. A publishing insider calls the book a "take-no-prisoners tell-all."

He tells The National Enquirer, "Holmes writes that rap honcho Sean Combs dropped his nickname 'Puff Daddy' because he was sick of the snickers he received - the Brits consider 'puff' a term for homosexual.

"Freddie (Mercury) once hired some dwarves to carry silver platters of cocaine 'above their tiny heads'. Holmes writes that the little servants were also required to be bare-chested an were forced to wear leather chaps and studded collars."

(This news article provided by World Entertainment News Network)