Nicole Richie delivers baby girl

Reuters

THE PRISON LIFE: Nicole Richie has opted to serve her jail time for driving under the influence of drugs at the same detention centre that buddy Paris Hilton went to.

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Socialite Nicole Richie and her rock-star boyfriend became the parents of a daughter in Los Angeles on Friday, People magazine reported.

Harlow Winter Kate Madden was born at Cedars-Sinai Medical Center, People said, quoting a spokesman for Richie's manager. It is the first child for Richie, 26, and Joel Madden, 28, the lead singer of pop-punk band Good Charlotte.

Richie, the adopted daughter of singer Lionel Richie, has become a tabloid staple in recent years on account of her party-hopping lifestyle, stick-thin figure, and fractured friendship with Paris Hilton, her co-star in the reality TV series The Simple Life.

A pregnant Richie spent an hour in a Los Angeles jail in August after being sentenced to four days for driving the wrong way on a Los Angeles freeway while under the influence of drugs.

Prison overcrowding in Los Angeles County means nonviolent offenders often spend only a fraction of their sentences behind bars.