'DWTS' Pro Allison Holker and Stephen 'tWitch' Boss Adorably Reveal Baby's Gender -- See the Sweet Pic!

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It’s a boy for Allison Holker and Stephen “tWitch” Boss!

The professional dancers revealed that they’re expecting a “#BabyBossBoy” on Thursday with a cute cake surprise that Boss posted to Instagram.

“Surrounded by so much love today!!!” the 33-year-old dancer captioned the pic. “Life is beautiful.”

WATCH: 'DWTS' Pro Allison Holker & Stephen 'tWitch' Boss Expecting First Baby Together

The baby boy will be the first child for the couple, who tied the knot in December 2013. Holker has a 7-year-old daughter named Weslie from a previous relationship.

In October, Ellen DeGeneres jokingly revealed the “first ultrasound” of the baby, showing Boss -- who frequently appears on her daytime talk show as a guest DJ -- a clip of his face Photoshopped onto a dancing baby.

"It's got your eyes and your hat," Ellen teased. "You got nervous for a minute, like I had your ultrasound."

WATCH: Ellen DeGeneres Surprises tWitch by Sharing the 'First Ultrasound' of His Baby

The couple first announced that they were expecting on Dancing With the Stars back in October, thrilling Holker’s partner Andy Grammer.

"There's three of us now," the singer said excitedly. "We're the only team that has three."

Backstage that night, Holker told ET that the hardest part was keeping it secret for so long.

“We’re so excited about this, we’re so joyous,” she said. “So, to keep that locked inside, every day I was like, ‘I just want to tell the world!’”

WATCH: 'DWTS' Pro Allison Holker 'So Joyous' Over Pregnancy With Husband tWitch