LindsayDina Lohan watched in disbelief as her daughter Lindsay was sentenced Tuesday to 90 days in jail for violating terms of probation over a three-year-old drug case.

"This is so not fair to do this to my child," a flabbergasted Dina Lohan told PopEater exclusively shortly after Judge Marsha Revel made the announcement.

The 'Mean Girls' actress must begin serving her sentence on July 20, however she likely won't serve the entire 90 days. Many female inmates in Lohan's situation only serve about 25% of their sentence, meaning that the star will only spend about 23 days behind bars. Immediately after leaving jail, Lohan will spend another 90 days at an in-patient rehab facility.