Mariah Carey's ex-husband Nick Cannon welcomes baby girl with his model girlfriend

Nick Cannon has welcomed a new baby girl with his on-off model girlfriend, Brittany Bell.

The 40-year-old TV host and his 33-year-old model lover announced they had become proud parents to a baby girl.

Taking to Instagram on Christmas Day, Brittany shared the happy news – alongside a string of photographs of herself with Nick and their new daughter, named seemingly Powerful.

One image showed Nick, Brittany, Powerful and the couple’s three-year-old son, Golden, gathered together, while other images showed Nick cradling his latest child.

And a further snap captured Nick and Brittany proudly showing off their newborn daughter together – with the model leaning against the TV star following her water birth experience.

Brittany wrote in the caption of the photos: “The best gift ever. We have been surprised with... A GIRL!!!!!”

Revealing the baby girl’s name, Brittany continued: “Powerful Queen Cannon came this week perfect timing for Christmas."

The model and Nick didn't explicitly reveal when Powerful had been born – however the batch of images was shared in the late evening of Christmas Day.

She continued: “So much more to share. All I can say is that Nick was my rock through the most intense yet empowering natural water birth. It was nothing but POWERFUL.”

She concluded: “Merry Christmas!!!! THANK YOU GOD.”

Fans and followers were quick to congratulate the couple on their new arrival – with many responding: “Merry Christmas and congratulations”.

Nick and Miss Universe star Brittany reportedly began dating in 2015 but have endured something of an on-off status since 2017.

Powerful and Golden are half-siblings to Nick’s other children – nine-year-old twins Moroccan and Monroe Carey – from his past marriage to chart superstar Mariah Carey.

The pair were married in April 2008 but split in 2014 – with their divorce finalised in 2016.