Why NE-YO Is a 'Little Nervous' for Baby No. 4: 'The Complications Could Still Exist'

NE-YO can’t wait to become a father for the fourth time, but he still has a few worries.

The singer stopped by the PEOPLE Now studios recently to chat about his and wife Crystal‘s second son on the way. (NE-YO is also a dad to son Mason Evan, 6½, and daughter Madilyn Grace, 7, from a previous relationship.)

“I’m a little nervous just because [in] our first pregnancy, there were a few complications to the point where she had to get an emergency [cesarean] section,” he explains. “This time, she is determined to not go c-section — she wants to do it the natural way.”

“The complications that were [present] could still exist, so there’s a little bit of nervousness in there but above that, it’s more nervous excitement,” continues NE-YO, 38. “I just want to meet him.”

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The singer has his own “Miss Independent” at home with his oldest child, daughter Madilyn, who’s about to become a big sister for the third time.

Revealing Madilyn is “hands down” the boss of the family, NE-YO says, “That was one of the things that kind of made it okay for us to be having another boy. She was a little bummed out when she found out it was a boy because she was banking on a little sister.”

“But I told her, ‘No no no, that just means that now you have three little henchmen that have to do whatever it is you tell them, because you’re the oldest!’ ” he jokes. “And she was like, ‘Oh, okay!’ ”

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Of himself, his own mom, his wife and the mother of his two older children, the star admits he’s “the least parental” of the bunch — but that has its perks.

“My kids look at me and they see fun,” NE-YO shares. “I’m the one jumping on the bed with them! And then my wife comes in and I’m like, ‘Get off the bed! What’s wrong with y’all?!’ ”

“[And then I’m like] ‘Okay, she’s gone, yay!’ And then we do it again,” he says. “That’s me. So I’m trying to get more parental as we go.”