lopezosbourne093011_01_X17.jpgAfter an online report popped up today claiming Kelly Osbourne has fallen "off the wagon," the Fashion Police host has taken to her Twitter account to set the record straight.

Radar claims that Kelly, who has reportedly been sober since leaving rehab in 2009, is back on the booze and she was "wasted" at The Art of Elysium pre-Golden Globes bash on Saturday night. "Kelly is definitely off the wagon again -- at least when it comes to drinking," a source told Radar. “I’ve seen her out drinking cocktails, beer and champagne numerous times, and I’ve seen her pretty unsteady on her feet too." Another eyewitness added, "Kelly was so wasted. At one point she almost fell back and I had to catch her!" Yikes!

So what does Kelly have to say about all this? The starlet tweeted, "thats funny radar because i was not even at any of the after parties i was working!!!! @radar_online please stop writing bullsh*t about me i did not even go to any golden globe parties i was working! i will say this till I'm blue in the face I DO ENOUGH STUPID SH*T YOU DONT NEED TO MAKE THINGS UP!"

She later added, "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'."