Before he met Jessica Simpson, John Mayer was just another musician — and her friends tell OK! that it was Jess who catapulted John onto the celebrity dating map, leading him to A-list conquests like Jennifer Aniston and Cameron Diaz.
And just look at how he repaid her!
According to pals, it was Jessica’s relationship with John — who recently humiliated her by revealing intimate details about their sex life — that jump-started his ascent up the dating food chain after the couple split in 2006.
“It was only after she gave her seal of approval that A-listers like Jen Aniston and Cameron Diaz started dating him,” the source continues to OK!.
“Before that he was a successful musician, no doubt, but Jess ushered him into the world of celebrity dating.”
“A lot of Jess’s friends joke that she created a monster,” a source tells OK!, adding: “She put John on the map and made him a tabloid sensation.”
Her powerful influence on his dating life makes John’s public rants and overly revealing Playboy interview — where he likened Jess to “sexual napalm” and “crack cocaine” — all the more insulting.
“She’s really furious,” says a source close to Jess. “She never, ever thought John would humiliate her like that.