A Twitter feud between Lady Gaga and Perez Hilton has heated up.  The feud between the once-friends seems to come from various incidents, including Tweets from Hilton voicing his opinion that Katy Perry's recently released "Roar" is better than Gaga's "Applause."  Gaga, who is recovering from a seriously tear on her right hip, tweeted:

Then Gaga went into overdrive on Sunday, according to CNN.  She tweeted: 

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

That tweet has since been removed.

Last week, Hilton, who lives in Los Angeles, tweeted that he would be moving to New York to raise his son, who was born via surrogate in February.  In response to Gaga, Hilton tweeted:

The blog post explains that while he was house hunting in New York, he later learned that one of the building's he was looking at was in fact the building that Gaga lives in.

"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," he wrote, adding "it is still too painful" to reveal what caused the end of their friendship.

All of this resulted in numerous death threats to Hilton from Gaga's fan base, and included derogatory remarks about his son, according to Hilton.  Hilton has even retweeted some of the comments from accounts that appear to be from Gaga's fans.

In response to the threats, Gaga issued a message on her Born This Way Foundation's website.

 

In the post, she wrote "Sending threats of any kind, using hateful or abusive language, and the provoking of others on the internet is not supported by me or anything that I stand for. What I've seen transpiring is wrong and upsetting to me, and I've made it very clear how I feel about equality and compassion."

"I know how angry you feel sometimes, and I know that when they say things about me you feel that they are saying them about you as well. But music is about love, and is about sharing in the magic of theater. Although pop culture and society have become more negative and critical of the artist over the years, by engaging in this negativity you are allowing it to spread," she continued.

Gaga also urged websites like Twitter to help her monitor control the negativity, as she doesn't "know that [she is] powerful enough to stop it [herself]."