Lady Gaga and Perez Hilton and currently locked in an a war of words with each other, with Gaga going insane after finding out her former friend Perez was in her apartment building and has accusing him of 'stalking' her.

Gaga took to Twitter to post an angry rant (which she has since deleted) about the 'sick' blogger after one of her fans informed her he was being shown around an apartment inside her New York building, and she also claimed he has been 'harassing' her.

She wrote: 'STAY AWAY FROM ME + MY FAMILY YOU ARE SICK TRYING TO RENT AN APARTMENT IN MY BUILDING TO STALK ME. LEAVE ME ALONE!!!

'DO I NEED TO BE SHOT IT IN THE HEAD FOR PEOPLE TO UNDERSTAND THAT HIM AND EVERYONE ELSE THAT HARASSES ME HAS GONE TOO FAR? I'M A HUMAN BEING. (sic)'

Shortly before the feud erupted, Gaga took to Twitter to reveal Perez had poked fun at her when she was left wheelchair-bound after suffering a labral tear on her right hip earlier this year.

She wrote:

 

 Meanwhile Perez released his own statement on his site claiming his innocence in the while affair saying:

I have long had plans to return to New York City more permanently. New York was my home for 6 years in the mid 90s, before I moved to Los Angeles. I also lived here for 3 months last year while doing an off Broadway show. I’m a new father and I am primarily focused on my family and where we will be most happy. I love New York and that is where me and my growing family want to call home right now. Sunday, my realtor showed us a list of possible apartments to rent. I learned only after the fact that Lady GaGa lives in one of the buildings we looked at, and she was across the country in Los Angeles when I viewed that building. After a day of innocent house-hunting, I am devastated and my heart hurts that my former very good friend, a person I used to call my 'wifey' and traveled the world with, is making very public and very untrue allegations about me on Twitter. While it is still too painful for me to go into detail about why I chose to no longer make her a part of my life, I will say that I am a critic and not a “stalker”. Any allegation that I am stalking her, based on a day of house hunting with my baby boy and my mother, is utterly false, defamatory and now appears to be putting me and my family in danger. I will continue to be a critic - in a way that is not mean or involves name-calling, and I will continue to have an opinion and talk about music and songs, like GaGa's 'Applause'. I hope her fans stop sending me death threats, as the suggestion that I pose a danger to Lady GaGa is preposterous. If her fans want to send a message of support to Lady GaGa, they should buy her music. Notwithstanding my feelings about our personal relationship, I do wish Lady GaGa happiness and continued success and I assure you my family house hunting has nothing to do with her.

Gaga has now gone back to tweeting manically about her new video debut at 1pm today, because at the end of the day, it's still all about her.