KJ Apa, who recently welcomed his first baby with girlfriend Clara Berry, shared the news on his Instagram Story on Sunday.

The 24-year-old New Zealand actor shared his girlfriend's post to confirm the baby boy's arrival. In the post, the baby's hand is holding Berry's finger.

Berry revealed the name of the baby in the caption, Sasha Vai Keneti Apa, and noted he was born on Sept. 23. "He is a perfect perfection," she added. "I am the luckiest to have now two men of my life, filling my heart with this cosmic gigantic vast love."

Celebrities took to the comments section to share their wishes.

Apa's "Riverdale" co-star Vanessa Morgan wrote, " _____♥ ️ ♥ ️ ♥ ️ ♥ ️ River’s new bestie!! #boymom" while actress Eden Fines wrote, "Congratulations my love!!!!! __ "

Belgian model Gaelle Garcia Diaz commented in French, "Félicitations à vous deux meuf ❤ ️ mon coeur fond devant ces petits doigts" that translates to, "Congratulations to you girl ❤ ️ my heart melts in front of these little fingers."

Apa had confirmed Berry's pregnancy by sharing a photo of her sitting next to him. In the photo, she flaunted her baby bump while playing with the actor's hair.

In June, Apa and a pregnant Berry were spotted together enjoying a date night in West Hollywood, California. The couple made their relationship Instagram official in August 2020 as the actor posted a nude photo of Berry.

On the work front, the actor is a regular on the "Riverdale" TV series from 2017. He was also featured in the movie "Songbird," which was released in December 2020. The movie also starred Sofia Carson, Alexandra Daddario, Demi Moore, Peter Stormare and Bradley Whitford.

He also worked in Andrzej Bartkowiak directed "Dead Reckoning," which was released in November 2020. Earlier this year, he also appeared on the "Jimmy Kimmel Live!" show along with Mila Kunis and Sam Dew.

Berry, on the other hand, was last featured in a short movie, "Lost Paradise: A Smart Talk," which was released in 2017. She was also featured in a music video, "You Don't Know Me," released in 2015.

KJ Apa car crash
“Riverdale” star KJ Apa is pictured at Comic Con on July 22, 2017 in San Diego, California. Getty Images