Kelly Osbourne addressed on Twitter Sunday the controversy surrounding the hip-hugging dress which ignited rumors that she was pregnant. Osbourne, 30, was photographed on the red carpet at the Grammy Awards in a skin tight Christian Siriano gown that led viewers to speculate she might be expecting. Upon learning about the rumors, Osbourne shut down speculation on social media. "NO IM NOT PREGNANT YOU [expletive]!" Osbourne tweeted from the red carpet. "I have a back brace on AND I REALLY NEED TO TAKE A [expletive]! #SuckIt" Osbourne currently co-hosts E!'s "Fashion Police" along with Giuliana Rancic, Brad Goreski, George Kotsiopoulos and newcomer Kathy Griffin.