Lindsay Lohan reported to the Century Regional Detention Facility in Lynwood, California, on Sunday at 8:48 PST in order to begin serving her jail sentence of 30 days. It is expected she will be released very quickly, in accordance with a federal court order on jail overcrowding. If for some odd reason you forgot why Ms. Lohan is again returning to jail, it is due to her missing a number of mandatory therapy sessions, a violation of her probation. UPDATE: And she’s out already, in under five hours. [TMZ]