Paris Hilton pleaded guilty Monday to two misdemeanor charges stemming from her arrest for drug possession last month at a Las Vegas hotel-casino. She will serve a year of probation and avoid a felony charge under the terms of a plea deal worked out with prosecutors after the 29-year-old celebrity heiress pleaded guilty Monday to drug possession and obstructing an officer.

In court, Hilton admitted to the judge that she lied to an officer about cocaine found in her purse.

"I said that the purse wasn't mine to the officer, your honor," Hilton said.

Hilton must complete a drug abuse program, pay a $2,000 fine and serve 200 hours of community service.

She faces a year in jail if she violates the probation and is arrested for anything other than a minor traffic violation.