Tara Reid entered rehab last week for an unspecific reason. The reason is now known. Man, you'll never guess what is is! A source tells People:

"Tara has a problem with alcohol. It’s been at the root of much discomfort between herself and her family and friends...She becomes erratic and is a completely different person when she's intoxicated, which is hard for people close to her to watch."

This source must her publicist, because Tara Reid has a "problem" with alcohol like John Wayne Gacy had a problem with little boys. In reality, Tara is a raging alcoholic who took about three years to completely drink her career away. If she didn't go to rehab, there's a good chance she'd be drinking the anti-freeze out of your car after the bartender cut her off.

Tara Reid celebrating her 30th birthday last month. I'm gonna take a wild guess: She was drunk.