Jessica Simpson Come Back To Act With Jeremy Piven: Tell him what you really think, why don't you? A sassy and sharp Jessica Simpson is seen telling Jeremy Piven's character Ari Gold in Entourage exactly what she thinks of him in an upcoming episode of the hit show. The 30-year old singer plays herself in the scene where her hard ball ex-agent Ari shows up at her house to grovel after avoiding her phone calls for months. I'm sorry,' he says. 'I brought you a present.'Then his assistant appears out of nowhere clutching a fluffy black puppy.I know it must have been hard after you lost your dog. I'm sorry I didn't call.'

The scene makes light of the fact that Jess lost her own puppy Daisy earlier this year after it was snatched by a coyote whilst out on a hike. 'You really are an a**hole,' she said. 'And besides, Daisy was a malti-poo.'For those of you who don't know, that's a cross between a Maltese and a poodle. 'That's just a poo,' she tells him before slamming the door in his face. The star's last foray into acting was in the 2008 film Major Movie Star, in which she played an actress who joins the army after suffering amnesia from a car accident.

The film went straight to DVD and since then Simpson has focused on developing her fashion lines. The success of these has reportedly amassed her a fortune of $80million and created a fashion empire worth over $400million. Jess recently returned from a week long holiday in Capri, Italy where she celebrated her 30th birthday with new man, Eric Johnson. The episode airs on HBO in the US tomorrow.