Paris Hilton will not appeal against her 45-day prison sentence for violating her probation for a drink-driving conviction.
The hotel heiress is due to start her sentence on 5 June
The 26-year-old is to serve only half of her sentence - about 23 days - after being given credit for good behaviour.
Los Angeles Superior Court spokeswoman Katherine Roberts said Hilton's lawyer notified the court that the reality TV star was abandoning her appeal.
Hilton is due to begin her sentence on 5 June in a suburb of Los Angeles.
Officials said earlier this week that several factors were considered in granting her the shorter jail term, including the fact that she had appeared at her latest court hearing.
Hilton, 26, will stay in a block that contains 12 cells, each holding two people.
It is reserved for celebrities, public officials, police officers and other high-profile inmates.
The unit is part of the Century Regional Detention Centre in Lynwood, California, which holds over 2,000 prisoners.
Los Angeles County Sheriff spokesman Steve Whitmore said Hilton would have the same privileges as all other prisoners, including at least an hour out of her cell each day to shower, watch TV, take part in outdoor recreation or use the phone.
Mr Whitmore would not reveal if specific security arrangements would be made for Hilton, amid speculation the paparazzi might try to take photographs of her in prison.
"If anyone tries to take advantage of this situation they will be dealt with swiftly and harshly," Mr Whitmore told the AFP news agency.
"This is not an e-ticket ride at Disneyland. This is a serious matter and it is not to be treated frivolously," he added.