The actor's wife Jenna Dewan-Tatum gave birth to the couple's first daughter Everly six months ago, and he has revealed the child's early milestone.
Speaking on 'The Ellen DeGeneres Show', he said: "She just got her first tooth.
"It's like a huge thing and its razor sharp. I think she's going to be cutting me very soon. But it's as cute as it can be."
It seems fatherhood has made the '21 Jump Street' star even more attractive, according to his wife, who has said seeing him with their baby "melts" her.
She previously commented: "There is nothing sexier than seeing the man you love, like, holding your beautiful baby.
"And the way he rocks her and he sings to her - and he's so gentle and sweet and sensitive with her, and it melts you, it really does."
In the past, she has also revealed the couple plan to have another child in the future.
She said: "Maybe a little bit later. Yeah, this is kind of the wrong time to ask me when I'm getting four hours of sleep a night."