Ciara has a new addition to her family! The singer, 37, and her quarterback husband Russell Wilson, 35, have welcomed their new arrival, they announced on Instagram Monday.

Daughter Amora Princess Wilson was born on Monday, Dec. 11, weighing 9 lbs., 1 oz., the happy parents announced.

"We Love You so much!" the happy couple shared in the caption of their joint post.

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The new arrival shares a middle name with big sister Sienna Princess, 6. Ciara shares her two daughters and son Win Harrison, 3, with Wilson and is also mom to son Future Zahir, 9, whom she shares with rapper ex Future.

Just hours prior to announcing their little girl's birth, Ciara posed with her kids at Wilson’s Denver Broncos game against the Los Angeles Chargers.

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“3 + 1,” Ciara’s caption read as she posed with son Future, daughter Sienna, and son Win behind the scenes at the game which saw Russell's team triumph 24 - 7.

Ciara, Future and Sienna appeared to be in great spirits as they displayed beaming smiles, with Sienna wearing a pink t-shirt with her father’s No. 3 jersey number. Meanwhile, Future and Win were also dressed in matching bright orange sweatshirts and shorts.

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In August, Ciara announced the exciting news that she was expecting her fourth baby, the third with the Denver Broncos quarterback.

The couple shared their exciting baby news in a video announcement on Instagram, filmed by the NFL star on the couple's anniversary trip to Japan.

"You look at me like that again, we make another kid… You my heart I’m your rib," she captioned the silhouette video, where she dances in front of a pool and turns to show her bump.

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"Ciara has been working and travelling all through her pregnancy. She shot the 'How We Roll' video while pregnant. She was dancing on set all day long for a full day's shoot," a source told PEOPLE at the time, noting she shot a music video at 9 months during her last pregnancy with son Win.

They added, "It's astonishing how much energy she has when she's pregnant."

"She's one of those mothers who has energy throughout her whole pregnancy. She always calls her life organized chaos — but it's organized chaos taking it up another notch," the insider continued.

"She loves being a mother so this is what she loves doing. This is what she has always wanted, and Russ too. They've always wanted a lot of kids."