Jessica Simpson is said to be really pissed off that fellow blonde bombshell Cameron Diaz has hooked up with her ex John Mayer.
Jess ended her seven-month relationship with the rock star back in May but is still hung up on him and is now “really jealous” that Cameron has been getting close to him.
“She had her mouth open a mile wide when she found out. She just freaked. She thinks about him all the time. She is so not over him,” a source told US magazine.
In other Jessica news, the pop tart has just been replaced as a co-host on her lil' sister Ashlee Simpson's chat show...by a monkey!