World, meet baby Ivey Joan. (Insert a dozen heart eyes emojis here!)

Over the weekend, Jamie Lynn Spears finally introduced her newborn on Instagram, sharing the first public photo of her little girl with husband Jamie Watson.

"My #1's," the 27-year-old actress and singer captioned a photo of her holding Ivey Joan alongside Watson and her 9-year-old daughter, Maddie, at Maddie's softball game in Louisiana.

Spears welcomed her second daughter on April 11. She initially shared the news of her pregnancy on Christmas Eve last year.

"Looks like we are starting off 2018 with another big milestone… sooo happy to announce that Maddie is FINALLY going to be a big sister," she gushed on social media at the time.

At the age of 16, Spears welcomed Maddie, her first daughter and only child with her ex, Casey Aldridge, on June 19, 2008.

Celebrity Siblings Who've Co-Starred On-Screen

More From KISS 104.1