Paris Hilton will face a judge on May 4, when prosecutors are hoping to have her probation revoked -- which could result in a 90-day jail sentence! Paris making license plates?

In January, Hilton pleaded no contest to alcohol-related reckless driving -- stemming from a September arrest -- and was sentenced to 36 months probation, alcohol education and $1,500 in fines. Prosecutors argue that her February arrest for misdemeanor driving with a suspended license violates that probation.

While not present in court today, Hilton will have to appear in person next month.