Nicole Richie Makes Fun Of Jessica Simpsons Weight On Fashion Star

Nicole Richie Makes Fun Of Jessica Simpsons Weight On Fashion Star - Celebrity Dirty Laundry

Jessica Simpson and Nicole Richie are at each others throats as their new reality series, Fashion Star kicks off and one issue is that Nicole is making fun of Jessicas new chubby appearance.

The two act as celebrity mentors to aspiring designers on the upcoming show and sources say theyre constantly sparring. The two have a rivalry that goes back years, according to an insider, as competing heads of their own fashion lines the Jessica Simpson Collection and Nicoles hippie-chic House of Harlow.

Producers thought pairing them on screen would mean lots of fireworks to attract viewers, but their personalities dont mesh at all. Behind the scenes, the set is a war zone.

While mom-of-two Nicole, 29, is a laid-back sweetie, 31-year-old Jess is a major diva, said the source.

Nicole is always ready to go, but Jess lingers in her dressing room, keeping everyone waiting and asking to do multiple run-throughs, the insider divulged.

Then theres their weight issues, which have the two poking fun at each other. Jess is carrying some extra pounds, while Nicole is runway-skinny.

Nicole has made a few digs about Jessica throwing her weight around, while Jessica has joked that someone would have to be on a starvation diet to wear Nicoles designs, the insider said.

Now theyre barely talking, which doesnt bode well for the shows success and it isnt even on the air yet!

Image credit to Fame Pictures