TMZ confirmed that Lindsay Lohan has checked into Promises Malibu rehab. Lawyer Blair Berk chauffeured her to the treatment facility. Sources say this isn’t one of those in-n-out treatments other celebrities have done. Rather, it’s a very serious medical treatment program which is expected to last 30 days and whose out-patient program lasts even longer. Hysterically, Lindsay Lohan’s birthday party at Pure is supposed to take place July 2-3. That’s like slapping a hungry cougar’s face with a t-bone steak. It’s safe to assume Lindsay will crack under pressure and head to the hospital due to “water” poisoning.