Lindsay back in rehab?

Though a poster has been released advertising Lindsay Lohan's 21st birthday blowout party in Vegas, the Georgia Rule actress is reportedly on her way back to rehab, according to In Touch mag. "She finally realizes it's the right thing to do," a close friend of the star says. "She is going willingly." Lohan was allegedly due to check into Promises in Malibu on Monday afternoon, following a night of partying at a 944 Magazine event Sunday night at Teddy's - where she reportedly insisted she didn't care about the consequences of her DUI arrest earlier this weekend. According to the mag, the actress was photographed "seeming to be out of it in the front passenger seat of a car being driven by her friend, disc jockey Samantha Ronson."
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