Allen 'makes phone threat' to Katy Perry

Lily Allen has reportedly continued her feud with Katy Perry, threatening to post the US popstar's telephone number online.

According to The Sun, Allen claimed on her Facebook page that she will make Perry's phone number public should she criticise her again.

"I have Katy Perry's number, someone did me a favour," she reportedly wrote. "I'm just waiting for her to open her mouth one more time then it hits Facebook."

Allen has allegedly joined the Facebook groups 'I hate Katy Perry and her dumb-ass song 'I Kissed A Girl' and 'Katy Perry? Who in the hell does she think she is?'

The pair's feud stems from Perry's comments last year suggesting that Allen was overweight. Allen later hit back, calling her pop rival "crass" and accusing her of stealing her image.