Oh, celebrities: they suck, yet we can't stop thinking about them. But who is truly the world's most worthless celebrity? Here at Heavy, we use science to answer these questions. Using a complex series of algorithms that monitor blog mentions, videos, and other Internet and media traffic, we have distilled the world's celebrities into an orderly list of 100 attention-seeking douchebags. Every day, we'll debut another entry on the list, counting down to the ultimate celebrity trainwreck.
The usual trainwrecks we see on American Idol are just ordinary people who can't sing, and after the auditions are over we never see them again. Not so for this trainwreck – she actually made it pretty damn far in the competition before being eliminated, and the real damage didn't start until she was reaping the fame of an AI also-ran. First there was that whole mess with her 56 year old stalker, and then she was arrested for winging a glass at a fellow bar patron while out of her mind on cocaine. Off to rehab, and then off to Celebrity Rehab. Less than a week after the show wrapped, she got busted again, this time offering to blow a cop if he let her go and then puking in the police car. So who is this hot mess? Find out after the jump.

Lucky number 88 in the Trainwreck 100 is Jessica Sierra! After singing her way into the Top 10 on Idol's first season, she seemed poised for semi-stardom. But Sierra chose instead to pursue the path of the trainwreck, recording a sex tape with an unidentified partner and getting tossed in jail for an altercation at a Tampa bar. Throw in her tendency to get caught by the paps doing unladylike things like pissing on a car and she was a hot prospect for VH1's Celebrity Rehab. After a stint on the show, she was wasted at a bar once again, arrested again, and tossing her cookies in the back of a cop car while sexually propositioning the arresting officer. As part of her probation, she was forbidden from being closer than 100 feet to a microphone or camera for a year, robbing us of potential hilarity. However, the ban has been lifted and she's allegedly clean – how long do you think that'll last? Check out this clip of Sierra on AI before it al went to hell.









