Lily Allen and Perez Hilton have started a public slanging match on Twitter. The pair have a long-running feud. In the past Hilton has described Lily as washed up while the singer has called him a woman hating bully but now their war of words has moved into the 21st century. After spotting that Lily was casting for her new music video the blogger called on readers to suggest him for a part. It wasnt long before Lily replied, Oh, I'm sorry, we've already cast the jealous and bitter lonely old queen role. Next time, eh?" she wrote before Hilton responded, "Jealous of who? David Beckham, maybe. And if I wanted to be a f****d up Brit, I'd rather be Amy Winehouse - whose [sic] got talent." After calling Perez "obsessed" with her, a "douchebag" and a "parasite", he returned the favour by saying Lily was "desperate" knocking her album down to $3.99 in a bid to get a US No 1 Hilton added: "Aw, u can see I've lost weight! I am a littler Perez. But I'm still a big fat c*** - just like U! That's why I lova ya. Xoxo P.S. Thanks for advertising on my website. I'll take your money (or the label's) anytime!" It was Lily who landed the final blow, "I know you will, and that's what makes you a cheap a** whore, she concluded. Now leave me alone, stop following me, I'm working. Bye x x. Wow.