Britney Spears at LAX on June 18.
06/18/2008 at 05:30 PM EDT
is at home in Kentwood, La., to be on hand when her sister Jamie Lynn
gives birth, PEOPLE confirms.
After taking an early morning commercial flight from LAX, the singer, 26, touched down in New Orleans on Wednesday afternoon with her father, Jamie, 55, her brother, Bryan, 31, and her assistant, Brett.
The Spears clan then headed home to the Spears family Serenity mansion in Kentwood. Their arrival comes just before Jamie Lynn, 17, is expected to give birth.
In anticipation of the youngest Spears's imminent delivery, Jamie Lynn has been preparing her nursery
– with its pink, brown and "silver-green" color scheme – and buying furniture with her mother, Lynne, 53.
Reporting By JENNIFER GARCIA, PERNILLA CEDENHEIM and RUTH LANEY