's father Jamie testified in her misdemeanor driving-without-a-license trial Thursday that California isn't her permanent residence.
"Her home is Louisiana," he said in a Southern drawl. As for when she'll be returning to Louisiana, "There's plans right now," he said.
The 26-year-old pop star, who was not in court, faces up to six months in jail and a $1,000 fine on a charge of not having a valid license at the time of an August 2007 fender-bender.
She had a Louisiana license, but prosecutors contend Spears should have had a California license as a resident of the state.
The prosecution rested its case after calling one witness: Department of Motor Vehicles investigator Gary Edmonds, who testified a DMV document showed that Spears was not licensed in California on the day of the accident.
Jamie Spears, 56, who legally controls his daughter's affairs, took the stand for the defense, saying that his daughter is in California for the sake of her two sons.
"We're here with her kids," he said. "We have visitation rights. We have to stay to augment those rights."
Britney, whose ex-husband Kevin Federline
has primary custody of their children, will move back to Louisiana once "we can travel with the kids (out of state) and spend time there," her father said.
He went on to describe numerous family members who currently live there, including Britney's mother, sister, aunts, uncles, and her newborn niece.
Britney currently owns homes in Louisiana, New York, Florida and California. She acquired her Louisiana home "eight and a half years ago," he said.
Asked where he lives, Jamie replied, "I live with her. In Beverly Hills." Then asked for his primary residence, he said, "Louisiana."
Prosecutor Michael Amerian countered by stating that Spears's voter status in Louisiana is inactive because she hasn't voted there for some time. He also showed the jury her divorce filings, which indicated she was a California resident.
Closing arguments were set for Friday morning.