Jiminy Cricket, it's all kicked off.
Brit's little sis Jamie Lynn Spears has been a-puffing and a-panting.
And we've got some great new folks...
Jamie Lynn and fiance Casey Aldridge have welcomed a baby girl into the world - huzzah.
E! News confirmed that the little bundle of joy, named M
addie Briann, was born Thursday morning at a Mississippi hospital.
And it seems it was a real family affair...
The couple apparently arrived at the hospital at 5am, followed by Jamie Lynn's parents 45 minutes later.
Britney and brother Brian arrived at 8am, just in time for the arrival of their niece.
Congratulations Jamie Lynn and Casey.
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