Stephanie Pratt was formally charged with a DUI today stemming from an arrest on October 18. She was apparently leaving Holly Montag's birthday party when she was pulled over by the cops at 3:45 am.

Had Stephanie waited about another hour or so, she probably wouldn't have been charged with a DUI considering she was just barely over the legal limit.

"Pratt's two breathalyzer tests registered .08 and .09 -- the legal limit is .08 -- so she was arrested and held on $5,000 bail. If convicted, Pratt could face up to six months in jail and a $1,000 fine."

I want to see the mugshot so bring it on! I'm interested to see if her inflated lips take up half her face like they did at the MTV VMAs. What the hell did she do to herself? I noticed she's starting to look like a bad plastic surgery victim on this season of The Hills.