(2012 Art of Elysium Heaven Gala at Union Station 14.01.12 Credit: Apega/WENN.com)

Following rumours that she was drunk at a pre-Golden Globes party last weekend comes even more evidence suggesting Kelly Osbourne may have fallen off the wagon.

The supposedly reformed drinker and drug taker, who has been to rehab three times, was spotted getting loose ant the Cha Cha Lounge in Silverlake, California.

A witness at the scene said 27 year old Kelly was “getting drinks at the bar and was clearly wasted”.

Another person said they even saw her buy a marijuana cookie off a woman called “Lady Cakes” (I'm not making this up) for $10.

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Kelly slammed the Golden Globe reports when they came out, and has now taken to Twitter to defend herself against these rumours as well.

“If I want to have a drink them Im going to have a drink Im 27 years old! Was their story true? NO! is it anyones business NO?#GiveMeABreak!” she tweeted.

“Trust me I've worked to hard to go and f**k my life up agin you ass holes! and thats quite frankly all i have to say on this stupid subject!”

Do you think it's OK for someone who has been to rehab to have a drink once in a while?