The former Blazin' Squad singer, real name James MacKenzie, and his long-term partner welcomed the baby girl last night and named her Wyllow-Alliyah.
Kenzie, 28, who already has one-year-old daughter Wynter with Frankie, took to Twitter to announce their happy news.
Posting a picture of their new bundle of joy, he wrote: "The most special way to end a truly special month! Wyllow-Alliyah MacKenzie Nov 3rd weighing 6lbs7 my baby girl [sic]"
Close friend Mark Wright led the well-wishes, tweeting: "congrats @kenzofficial_ she looks beautiful [sic]"
JUSTIN TIMBERLAKE'S GIRLFRIEND JESSICA BIEL 'PREGNANT WITH FIRST CHILD'
The Big Reunion star Kenzie recently confessed his desire to have a big family with Frankie, and it looks like he's getting his wish!
REBECCA FERGUSON SHARES FIRST BABY PHOTO AND OPENS UP ABOUT BIRTH
He told a British magazine: "I want to have another baby soon. I actually want three or four children. May parents are from big families and I'd like a massive one too."
As well as his growing brood and touring with new band 5th Reunion to keep him busy, Kenzie has also launched a fashion line called Box Menswear – including polo shirts, hoodies and underwear.
Watch him modelling the range below!