Mark Ballas and BC Jean have welcomed their first child into the world.

The 37-year-old pro dancer and his singer-songwriter wife are now parents to son Banksi, who was born on November 5th.

Mark shared a picture of him and BC holding onto the youngster's hand, and he wrote on Instagram: "Welcome to Earth my son

Banksi Wylde Ballas 11 / 5 / 23 (sic)"

BC shared the same image, and she wrote: "Banksi Wylde Ballas

Joined us earthside 11-5-23

Happy one month sweet boy

You are so loved (sic)"

Mark appeared on the 'Dancing with the Stars' finale on Tuesday night (05.12.23).

He and social media personality Charli D’Amelio, 19, won the 31st season of the show last year, and they returned for Tuesday's season 32 finale to perform a routine to 'Give it to Me Baby' by Rick James.

'Dancing with the Stars' co-host Julianne Hough congratulated Mark on his baby news.

She said: "We are so, so, so happy for you. It's great to have both of you back in the ballroom."

Charli also took to Instagram to congratulate Mark and ... on their new arrival.

She wrote: "CONGRATULATIONS!! SO HAPPY FOR YOU BOTH!!!! (sic)"

Several pro dancers also congratulated the couple, including Peta Murgatroyd.

She posted: "The best!! Love you Banksi (sic)"

'Strictly Come Dancing' pro dancer Luba Mushtuk wrote: "Congratulations"

In October, Mark and BC, who perform as duo Alexander Jean, released a music video for song 'Rainbow', which reflected on them losing their baby in 2022.

They captioned a social media post: "We lost a baby last year. Just when we thought we were in a good place to tell friends + family we received the heavy news that our little one wasn’t going to make it, we’ve both been through hard things in our lives but this was a different kind of sadness (sic)"