Troubled US pop star Britney Spears has been ordered by a judge to report to a Los Angeles police station over a hit-and-run case.

Limp Bizkit lead singer Fred Durst has pleaded no contest to seven misdemeanours, including assault, battery and reckless driving, for deliberately hitting two people with his car.

Whitney Houston has asked a court to fast-track her divorce from Bobby Brown, according to court papers.