Britney Spears Sends Love to Little Sister Jamie Lynn After She Welcomes Second Daughter

Britney Spears is a unapproachable aunt again!

The superstar, 36, congratulated her small sister Jamie Lynn Spears Thursday afternoon on her code new baby girl.

“I could not be some-more vehement to acquire baby Ivey to this world. Congrats to @jamielynnspears and a whole family – we adore we all so much!!!” a singer, who is mom to sons Sean, 12, and Jayden James, 11, wrote on Twitter.

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Jamie Lynn — who wed Jamie Watson in 2014 — welcomed Ivey Joan (she also shares 9½-year-old daughter Maddie Briann with ex Casey Aldridge) on Wednesday, Apr 11, during 10:02 a.m., her repute reliable to PEOPLE exclusively.

Ivey was innate in Covington, Louisiana, weighing 7 lbs., 8 oz. and totalled 19½ inches in length.

“We are over vehement to welcome this pleasing baby lady to a family!” Jamie Lynn, 27, told PEOPLE, adding of Ivey’s name, “Her center name, Joan, is to respect my Aunt Sandra, who upheld divided 10 years ago from ovarian cancer. She was a many seemly lady I’ve ever known.”