Lady Gaga felt compelled to address Kelly Osbourne's "cyber-bullying" claims because she wants the world to be a "better place".
The Born This Way singer - who was blasted by Kelly's mother Sharon Osbourne and her Fashion Police co-host Joan Rivers for recently saying the show "breeds negativity" - claims that she only spoke out against the 28-year-old British star's role on the E! series because she is a youth activist.
She wrote on Saturday (12 January): "The 'real world' can be cruel, why not try to change it into a better place? I am an activist. Nobody takes adolescents seriously, I do. My letter to Kelly Osbourne was open, because her statements on cyber-bulling were public & as a youth activist I'm compelled to be involved."
The drama stems from Kelly's comments last October when she said, "Lady Gaga's fans are the worst" and accused them of encouraging her to commit suicide, she also claimed the pop superstar had a duty to step in and stop their comments.
In response, Gaga penned a lengthy open letter on her fan-based social networking site, LittleMonsters.com, addressed to Kelly, noting that while she felt empathetic towards her and discourages her fans "from any negativity and violence", she feels the show promotes bullying.
But Lady Gaga has admitted the public argument has left her inspired.
She wrote on her Facebook page: "Was up all night with the boys in the studio. Inspired."
The 26-year-old popstar's comments came just two days after Kelly's co-star Joan Rivers hit back at her and accused her of trying to get attention by saying the show promotes bullying.
She said: "It's time to start laughing. We've been doing this for fifty years. Tell Lady Gaga to worry about the maggots in her brain from the meat dress! But I told Kelly that it's all good because it means Lady Gaga watches Fashion Police!"
