Motley Crue's Nikki Sixx & Wife Courtney Welcome Baby Girl

nikki sixx courtney sixx
Paul Archuleta/FilmMagic

Nikki Sixx and Courtney Sixx attend the Premiere Of Netflix's "The Dirt" at ArcLight Hollywood on March 18, 2019 in Hollywood, Calif. 

Nikki Sixx and his wife Courtney Bingham have announced the birth of their daughter.

Ruby joined the family on Saturday (July 27), and the Motley Crue bassist took to Instagram to share the news. "A spunky little girl with a full head of hair making her the 5th Sixx joining her two sisters and two brothers. Fatherhood has been the greatest joy in my life.....and @how2girl is a real natural as a mom," he wrote.

Of course, the daughter of a rocker's nursery wouldn't be complete without a fitting gift from dad. "I got her a pink bass," he added.

Ruby is the couple's first child together, though Sixx has five children overall. The 60-year-old has three children from his first marriage to Brandi Brandt and one with his second wife, Donna D’Errico.

See the bassist's sweet post below.