Dwayne 'The Rock' Johnson welcomes baby girl!

Christmas has come early for action man Dwayne "The Rock" Johnson with his girlfriend giving birth to a baby girl.

The newborn is the Fast & Furious star's first child with his longtime partner, Lauren Hashian. Johnson has a 14-year-old daughter with ex-wife Dany Garcia.

Johnson, 43, was emotional as he witnessed the birth, according to E! News, and both mother and baby are said to be doing well.

Just days prior to the birth, Hashian opened up about impending motherhood in a sweet post on Instagram.

"So grateful and in awe of this time," she wrote.

"To experience creating a little life is just incredible. This beautiful cycle of life and womanhood beginning again. And like Big Daddy says - Couldn't be prouder of all the kickass women she's going to have around her! And Men of course...

"Let's just hope big daddy doesn't equal 20 pound baby!" she playfully added.

According to Radaronline, the happy parents have named their little girl Jasmine.

Source: NZ Herald, The Daily Mail