Britney spends one day with new niece and heads back to L.A. (update: photos)

I guess Britney Spears had all the Kentwood, Louisiana she could take. Or maybe it was all the Spears' family she could handle. Spears boarded a plane on Wednesday to go to her hometown and be present for the birth of younger sister Jamie Lynn's daughter. But after one full day in the joint, she's ready for the pampered life of a starlet again. The pop star was seen boarding a plane with her dad today to head back to her home in Beverly Hills. Because I'm sure she has a lot more important things to do than bond with her new niece or help her teenage sister take care of an infant. That's Mommy Lynne's job anyway, right?

Britney Spears has a tearful goodbye with her family as she left her hometown of Kentwood, Louisiana the day after younger sister Jamie Lynn gives birth to a daughter, Maddie Briann.

Spears, 26, is likely on her way back to her home in Beverly Hills. (The singer is currently at work on a new album, her vocal producer and co-writer Jim Beanz confirmed exclusively to Usmagazine.com.)

Maddie Briann was born Thursday weighing 7 lbs., 11 ounces. She is the first child for Jamie Lynn, 17, and fiance Casey Aldridge.

"I'm sure the baby's beautiful, and I'm so glad everybody's healthy and doing well," cousin Alli Sims told Us an after-party for Wanted in Los Angeles on Thursday.

"I just wish them all the happiness in the world," she said. "I know they're going to have so much fun."

[From Us Weekly]

Ah, yes. Cousin Alli. Like anyone in the Spears family talks to that dumb waste of space anymore. Anyway, I'm sure Britney needed to get back to see her two little boys, but I can't help think that it's going to be a long time before she sets foot in Kentwood again, even if her mom told a judge that she's eventually going to move back there. And I suppose she doesn't have a whole lot of parenting wisdom to impart to her little sister anyway.

UPDATE BY CELEBITCHY: Here is Britney arriving at LAX yesterday with her father and assistant. Britney was surrounded by 30 paparazzi and TMZ reports that there was a fight between one of her bodyguards and a photographer. The cops were called, but the two made up afterwards and no one was arrested. Thanks to WENN for these photos.