Mötley Crüe Rocker Nikki Sixx Welcomes Baby No. 5 -- Find Out Her Adorable Name!

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This will be the first child for the musician and his wife, Courtney Bingham Sixx, who tied the knot in 2014.

Nikki Sixx is a brand new dad once again!

The Mötley Crüe rocker and his wife, Courtney Bingham Sixx, welcomed a brand new bundle of joy on Saturday!

The proud papa took to Instagram on Tuesday to share the exciting news, posting a snapshot of a baby bassinet overflowing with pink and white roses and carnations.

"Saturday night my wife Courtney and I welcomed into our world and family a very beautiful baby girl named Ruby Sixx," Nikki wrote in the caption. "A spunky little girl with a full head of hair making her the 5th Sixx joining her two sisters and two brothers."

The rocker is already the father of four other children -- sons Gunner, 28 and Decker, 24, and daughter Storm, 25, who he shares with ex-wife Brandi Brandt, and 18-year-old daughter Frankie Jean, from his marriage to Donna D'Errico.

This is his first child with Courtney, whom he married in 2014.

"Fatherhood has been the greatest joy in my life.....and @how2girl is a real natural as a mom," he wrote, praising his lovely wife. "I would like to thank our family and friends for all the love and support ( and flowers ). We are already sleep training her with a metronome and I got her a pink bass."

Nikki and Courtney first announced that they were expecting back in January, when the musician told ET, "We’re really excited and happy." 

Congrats to the excited new parents!

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