01/20/2012 11:17 am ET Updated Jan 20, 2012

Kelly Osbourne Slams Report She's Drinking Again

Kelly Osbourne is fighting back after RadarOnline claimed the 27-year-old "Fashion Police" co-host is "back to boozing."

RadarOnline first reported yesterday, that sources told them Osbourne was "so wasted" at a Golden Globes afterparty that "at one point she almost fell over and I had to catch her."

The website updated its story to say that Kelly was actually seen drinking heavily at a pre-Golden Globes event, The Art of Elysium on Saturday night -- but only after Osbourne tweeted at them, "@radar_online please stop writing bullshit about me i did not even go to any golden globe parties i was working!"

Osbourne has never hid her past struggles with drugs and alcohol, but was able to get clean after her third trip to rehab in 2009.

Her multiple tweets on the subject showed she was clearly annoyed by the story, writing, "i will say this till I'm blue in the face I DO ENOUGH STUPID SHIT YOU DONT NEED TO MAKE THINGS UP!"

She even tried to laugh off the report, telling her 1.4 million Twitter followers, "my room mate & i are having a proper laugh about all this B,S press he goes 'i wish you were that fun U never do anything but work old lady,''" adding "you gotta laugh if people only knew how nerdy and boring i really am."

Osbourne wrapped up the issue by saying:

Kelly was at the The Art of Elysium party but we should note she was awake and on Twitter by 11 a.m. the next day, posting photos taken at that party.

More celebrities who have battled addiction:

Celebrities Who Have Battled Addiction