The 38-year-old professional dancer announced Monday on “Good Morning America” that he is joining the season as a surprise 15th pro.
“I just can’t wait to get back,” Chigvintsev said. “And I want to dedicate this season to my little boy.”
Chigvintsev, who sat out “DWTS” Season 28, said being a father is “the most incredible feeling.”
“Nicole and I are just obsessed,” he added. “I just didn’t know that I could have so much love to give. It’s just incredible.”
Chigvintsev and Bella started dating after they were partnered on Season 27 of “Dancing with the Stars,” which aired in 2018.
Bella gave birth to the couple’s son in July.
“Our baby boy is here and we couldn’t be HAPPIER and more in LOVE!” she said on Instagram at the time.
Season 29 will mark Chigvintsev’s ninth season as a “DWTS” pro. He celebrated his impending return in a video Monday on Twitter.
“Finally, the news is out! It was so hard to keep a secret, but yes, I’m back on ‘Dancing with the Stars’ Season 29,” Chigvintsev said.
“I can’t wait to get into that ballroom and just teach, perform,” he added. “That’s what I do. That’s what I love.”
Season 29 will also feature Brandon Armstrong, Alan Bersten, Sharna Burgess, Cheryl Burke, Val Chmerkovskiy, Sasha Farber, Jenna Johnson, Daniella Karagach, Keo Motsepe, Peta Murgatroyd, Pasha Pashkov, Gleb Savchenko, Britt Stewart and Emma Slater as pros.
Season 29 of “Dancing with the Stars” premieres Sept. 14 on ABC.